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revision 1.190 by edhill, Tue Oct 21 15:29:20 2003 UTC revision 1.1650 by jmc, Wed Apr 11 18:17:42 2012 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o model/src:
8     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
9       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
10       temporary set to usingZCoords value (to be changed to F when using shelfice).
11     - hydrostatic pressure: implement partial cell near the surface also for
12       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
13       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
14    o pkg/ctrl/ctrl_init.F:
15     - add a formal parameter to s/r ctrl_init_rec to print
16       xx_$(ctrl_valiable)_file for easier debugging
17     - move call of cal_* routines into the if-block where they are really
18       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
19       to specify a startdate
20    o pkg/seaice:
21     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
22       global_ocean.cs32x15/code versions).
23     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
24       verification experiment global_ocean.cs32x15.seaice and update results.
25    o pkg/exf:
26     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
27       (according to useExfYearlyFields).
28    o pkg/cal:
29     - move calendar setting & summary (previously in cal_readparams.F) into new
30       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
31       length of the simulation is set (after SET_PARMS call); This is an attempt
32       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
33     - For safety: keep a record of pkg/cal parameter settings status
34               to allow to STOP if one pkg/cal S/R is called too early.
35     - add a stop in all basic pkg/cal subroutines if called before setting is done.
36     - modify cal_getdate.F: stop when nothing was returned;
37       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
38       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
39    
40    checkpoint63l (2012/04/04)
41    o pkg/bbl:
42      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
43        update global_with_exf output.yearly.txt file.
44    o pkg/cal:
45      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
46      - remove 2 unsused and very short (1 line only) functions ;
47      - remove unsused subroutines from AD-Diff list.
48    o model/src:
49      - start to implement clean wait to stop in initialization S/R (config_check.F,
50         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
51    o folowing PRINT_MESSAGE changes:
52      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
53    o pkg/bbl:
54      - modification so it can work with z*
55      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
56      - global_with_exf/input.yearly verification; changes output.yearly.txt
57    o eesupp/src:
58      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
59        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
60      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
61        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
62      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
63      - when using MPI, always set usingMPI=T ; set default accordingly and stop
64        if not consistent.
65      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
66        argument is zero (in case called within single-thread section).
67    o pkg/fizhi:
68        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
69        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
70    o pkg/exch2:
71      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
72        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
73      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
74        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
75        with bad ones coming from a not-yet-updated halo.
76        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
77    o pkg/frazil:
78        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
79        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
80    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
81    o verification/lab_sea
82      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
83      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
84      * nTimeSteps 3 -> 4
85      * changed reference output accordingly
86    o pkg/ctrl:
87      * fix ctrl_get_gen for xx_sst, xx_sss
88    o pkg/fizhi:
89      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
90        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
91      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
92        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
93        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
94    o pkg/gmredi:
95      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
96    o pkg/fizhi:
97      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
98        (old)aces open64 tuv test.
99    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
100    o pkg/mom_vecinv:
101      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
102        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
103        with non-lin free-surf).
104    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
105      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
106      some compilers (gfortran 4.6.0 on MacOS)
107    o momentum:
108      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
109        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
110        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
111    
112    checkpoint63k (2012/03/17)
113    o model/src:
114       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
115         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
116       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
117         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
118    o model/src: solve_*diagonal.F
119       - replace division with multiplication by inverse (similar to original version)
120         update output of AD exp. global_ocean.90x40x15.
121       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
122         to enable the use of the vectorized & differentiable solve_tridiagonal.F
123       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
124         vertical advection (to get solve_tridiagonal tested in AD mode).
125    o pkg/seaice: ECCO-CLIVAR merge:
126      1. seaice AREA relaxation
127         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
128         * runtime flag: SEAICE_tauAreaObsRelax
129      2. modified global mean cost imbalance code: CPP option
130          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
131    o another iteration on solve_*diagonal.F
132       Make choices independent of AUTODIFF
133       Default will be the adjoinable vectorized version.
134       Alternative choices are:
135       * non-adjoinable original version with low memory footprint:
136         #define SOLVE_DIAGONAL_LOWMEMORY
137       * still adjoinable but does not vectorize (k as inner-most loop):
138         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
139    o testreport
140     - add option to use a home made wrapper around "make"
141     - remove MITGCM_IEEE env. variable (no longer active)
142    o pkg/shelfice
143     - improve computation of friction velocity for velocity dependent
144       exchange coefficients: include velocities into SHELFICEBoundaryLayer
145       block to average velocities vertically
146     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
147    o Modify diagonal solvers, now three versions (upon request):
148      #ifndef SOLVE_DIAGONAL_AUTODIFF
149        1. default version (dating back a while ago)
150      #else /* def SOLVE_DIAGONAL_AUTODIFF */
151      # ifdef SOLVE_DIAGONAL_KINNER
152        2. adjoinable version with k-innermost loop (G. Forget)
153      # else
154        3. adjoinable vectorized version of 2.
155      # endif
156      #endif /* SOLVE_DIAGONAL_AUTODIFF */
157      All flags are currently set within routines, but could/should be moved to CPP-options.
158      Array bounds for 1. are as before, for 2.,3. cover the entire domain
159      (could be changed for 1. too).
160    o verification/lab_sea (fwd):
161      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
162        use 7 categories (except hb87), new solve4temp params (except salt_plume),
163        constant salinity (=4) or variable salinity (salt_plume) done through
164        SItracer.
165    o pkg/seaice:
166      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
167      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
168         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
169        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
170        SEAICE_freeze got retired) but already better than previously with
171        SEAICE_freeze=123456.7 deg.C;
172      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
173        (safer multi-threaded setting); always set SEAICEuseEVP;
174      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
175        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
176        stop if multiple specifications for the same coeff; make sure default
177        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
178    o pkg/obcs:
179      - allow to switch to upwind 1rst order advection scheme for the advective
180        flux computation at the open-boundary; disabled for adjoint built.
181    o pkg/ptracers:
182      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
183      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
184      - add parameter to decide when to start a tracer; use internal flag to
185        know which tracer to step-forward; switch this internal flag at the top
186        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
187        for adjoint built.
188    o pkg/seaice:
189      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
190      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
191      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
192    o pkg/ecco:
193      - fix writing of output file DiagnosCost_ClimSalt/Theta
194        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
195    o pkg/seaice:
196      - add missing initialisation of COR_ICE array in dynsolver.F
197      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
198        compiled either way, and is tested in all exps (multidim was only tested
199        in lab_sea ad before).
200      - cosmetic change to prepare for future addition of ITD. no change to results.
201        no defaults change.
202      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
203      - by lack of adequate verification experiments, I further used custom versions
204        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
205        should be correct.
206      - avoid recomputations in ad.
207    o array initialisation in adjoint mode:
208      1) pkg/mom_common/mom_calc_ke.F:
209        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
210        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
211        part this initialisation is gone, resulting in Floating Point Exception
212        (caught by open64 compiler with debug option).
213      2) model/src/convective_weights.F
214        set output convectCount over the full array range (instead of doing
215        an update): this fix a similar issue when called within recomputation (adjoint)
216        which could by-pass the initialisation (normally done in the caller S/R).
217    o pkg/seaice:
218      - final version of turbulent flux params, as agreed at MIT ice meet:
219           SEAICE_mcPheePiston (default is ~ 0.000875)
220           SEAICE_mcPheeTaper (default is 0.)
221           SEAICE_frazilFrac (defualt is 1.)
222           SEAICE_mcPheeStepFunc (default is false)
223      - changes results at trunction error level
224      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
225    o added pkg/frazil:
226      - see frazil_description.tex for details
227      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
228    o pkg/shelfice/shelfice_thermodynamics.F
229      - fix exponents for velocity dependent exchange coefficients: change
230        from 2/3(=0) to 0.66666666666666667
231      - move computation of velocity dependent exchange coefficients into
232        separate loop, so that it applies to both thermodynamics
233      - move some divisions by constants out of loops
234    
235    checkpoint63j (2012/02/16)
236    o pkg/seaice:
237      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
238      - SItracer:  added run time params, and allow coupling to ocn salinity.
239    o pkg/seaice: remove (almost) all divisions by constants within loops
240      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
241      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
242      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
243      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
244    o pkg/seaice :
245      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
246        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
247      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
248      - add permanent SItflux diag that corresponds to TFLUX but includes
249        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
250      - allow activation/testing of a fix for suspected missing term in
251        ocn-ice heat budget (to be confirmed). To test this, you want to
252        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
253        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
254      - no change in results, fwd or ad.
255    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
256      - switch to variable freezing point.
257           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
258      - bug fix : the sublimation term that was missing is now activated.
259           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
260      - bug fix : flooding sign term for SIsal0.NE.0.
261           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
262    o pkg/seaice:
263      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
264        is now the default, and the old default constant freezing point is recovered
265        with SEAICE_tempFrz0    = -1.96,
266             SEAICE_dTempFrz_dS = 0.,
267      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
268      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
269      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
270        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
271      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
272        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
273      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
274        seaice_growth r149 for legacy branch (no results change).
275      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
276        from I. Fenty).
277      - results did not change except for global_ocean.cs32x15, mostly due to the
278        switch to variable freezing point (see above item for detail).
279    o pkg/thsice:
280      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
281        seawater freezing in thsice_calc_thickn (not used).
282    o pkg/seaice: turbulent flux term specification via run time params.
283      - replace CPP switches with run time switches to facilitate testing
284      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
285                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
286      - added runtime parameter : SEAICEturbFluxFormula
287      - move Mcphee constants to SEAICE_PARAMS.h
288      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
289                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
290                 remove seaice_summary call (moved to seaice_init_fixed)
291      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
292        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
293      - seaice_summary.F : add missing report of read turbulent flux term set up
294                           and SITRACER.
295      - seaice_check.F : check range; inform and stop if retired CPPs are used
296                         (incl. SEAICE_AGE).
297      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
298             CPP switch, same computation as before for the different options.
299      - change results at the truncation level.
300    o pkg/seaice:
301      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
302        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
303        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
304      - update verification/*/input*/data.seaice:
305        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
306        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
307        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
308        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
309    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
310      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
311        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
312        difference in results only due to machine truncation.
313      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
314        MaykutPolySatVap; keep MIN_LWDOWN.
315      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
316      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
317        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
318    o pkg/salt_plume:
319      - isolate saltPlumeFlux array exch into a specific S/R called from
320        do_oceanic_phys.F
321      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
322    o verification:
323      - move untested set-up to MITgcm_contrib/verification_other.
324    o pkg/seaice:
325      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
326    o pkg/seaice:
327      - seaice_solve4temp.F (keeping results unchanged):
328        * add 2 future run-time params to select which saturation vapor pressure
329          formula is used and how post-iteration fluxes are set.
330          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
331        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
332          the linearized expression to stay consistent with tsurf finding.
333      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
334        can be < 0.
335    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
336      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
337        conductive heat flux F_c , and add it explicitly when updating tsurf as
338        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
339        so that now F_ia has a consistent meaning through the entire routine.
340        This causes differences at truncation level: update output of fwd exp.
341        global_ocean.cs32x15.seaice.
342    o pkg/seaice:
343      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
344        of arrays, sign/direction of fluxes; no effect on results.
345      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
346        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
347        note: this should have been done before changing celsius2K default.
348      - to keep results unchanged, add back old value of celsius2K in verification
349        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
350      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
351        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
352        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
353        freezing temp is consistent with value in seaice_growth.F ; this causes
354        differences at machine truncation level: update lab_sea AD output (3/4).
355    o pkg/seaice:
356      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
357        and climsst/sss even when using seaice (to prevent calculation that might
358        use SST on land); does not affect any verification exp.
359      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
360        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
361    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
362      over land (non-legacy code)
363    o vectorize salt_plume package:
364      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
365      - this code computes plumebk everywhere (also over land), thus requires
366        code to avoid divisions by zero and catch the case of kLev=Nr.
367      - efficiency of salt_plume_frac is still sub-optimal
368    o tools (genmake2):
369      - fix makefile NAME specification (option: -makefile NAME) by adding
370        "-f $MAKEFILE" in few places where it was missing including makedepend
371        command (contribution from Paul).
372    
373    checkpoint63i (2012/01/24)
374    o model/src:
375      - add factorized versions of some EOS code to find_rho.F,
376        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
377    o model/src:
378      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
379      - change default celsius2K from 273.16 to 273.15
380      - to keep results unchanged, add back old value of celsius2K in verification
381        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
382         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
383    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
384      to make TAF generate vectorizable code
385    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
386       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
387       have flags that do this more efficiently.
388    o pkg/diagnostics/diagstats_calc.F
389      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
390    o pkg/obcs (with exch2):
391      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
392        and remove code (in obcs_readparms.F) which was based on EXCH of indices
393        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
394    o pkg/exf and seaice exp:
395      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
396        so that switching off area & heff advection flags does not affect results.
397      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
398      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
399        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
400        results of verification experiments: 1D_ocean_ice_column(fwd),
401        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
402        and offline_exf_seaice (all 4).
403    o pkg/seaice:
404      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
405        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
406      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
407        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
408        not multi-dim advection;
409      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
410        SHORTWAVE_HEATING #undef.
411    o optim: make Makefile more robust (?)
412    o pkg/obcs:
413      * fix treatment of obcs_read_pickup for TAF
414    o pkg/shelfice:
415      * add missing initialisation of num_shifwflx
416      * new adjoint verification exp. for isomip
417      * change Prandtl and Schmidt numbers from generic formulations
418        (in terms of model diffus. and visc.) to separate runtime
419        parameters, with Holland and Jenkins (1999) default values.
420    o pkg/exf (interpolation):
421      - extended input field (2 rows) near the N & S poles:
422        * fill in with the symetric value (when even Nb of data in longitude)
423        * add average value at the poles only for scalar quantities ; for vector
424          component interpolation, skip the averaging and keep duplicated values,
425          unless the 2 components have same location (uvInterp=T) in which case
426          interpolate the 2 components together using S/R EXF_INTERP_UV.
427      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
428        together: this allows to account properly for local orientation when
429        averaging at N & S pole.
430      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
431        exf-interpolation near N & S poles. Undef by default.
432      - add debug check/print on 1rst iter if debugLevel >=2.
433    o pkg/exf:
434      - change masking flags definition (no longer "parameter"), put them in
435        common block and set them in S/R EXF_INIT_FIXED.
436      - change recognized masking flag from s,u,v to c,w,s since the mask
437        to use (maskC,W,S) depends on position on model grid and has little to
438        do with scalar/vector difference; fix masking if using P-coordinates.
439      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
440        and update results of exp. global_with_exf (x2).
441      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
442    o pkg/obcs
443      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
444    o pkg/exf (interpolation):
445      - assume periodicity in X only if input field cover full longitude range.
446      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
447        and should vectorise).
448      - fix input lat of the 2 added row (in case we provide N.pole data).
449    
450    checkpoint63h (2011/12/30)
451    o pkg/seaice:
452      - change declaration of UVM from _RL to _RS in order to get B-grid
453        uIce,vIce monitor when _RS = real*4
454    o pkg/offline:
455      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
456      - compute vertical velocity if not read from file (switch on exactConserv
457        & staggerTimeStep);
458      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
459    o verification:
460      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
461        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
462        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
463      - update output of exp. global_ocean.cs32x15.viscA4 after changing
464        grid-file angles (used here for coriolis-3d);
465      - remove (or gzip) few files not needed to run fizhi-cs experiments.
466    o pkg/exf (vector interpolation):
467      - rotate vector component toward local grid-axis orientation using grid-angles
468        (stored in GRID.h) instead of locally computed rotation angle; keep old code
469        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
470    o pkg/seaice:
471      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
472        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
473    o pkg/PKG_OPTIONS.h files:
474      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
475        outside of the #ifdef ALLOW_THISPKG / #endif block.
476      - update verification/*/code/PKG_OPTIONS.h files.
477    o add a verification experiment (offline_exf_seaice/input.seaice) that test
478      the B-grid LSOR solver
479    o pkg/seaice: sort out emissivity and long wave radiation step 2:
480      - add emissivity for snow and ice as new run-time parameters
481        (unfortunately) that default to the corresponding exf values; this
482        changes results in most verification experiments so that for backward
483        compatibility these parameter have to be set explicitly to inconsistent
484        values (ugly);
485      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
486        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
487        until we agree how to handle this bug properly
488    o pkg/exf (interpolation):
489      - add a set of run-time param ({inputfield}_interpMethod), one for
490        each interpolated input field, to select the interpolation method
491        with a value of zero switching off the interpolation;
492      - print interpolation parameters to standard output;
493      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
494        (to use instead runoff_interpMethod=0 in data.exf).
495      - simplify default setting of interpolation parameters (for all fields,
496        set position to match model grid cell-center position, leading to trivial
497        interpolation in case of regular Lat-Lon grid) and fix for the case of
498        non-uniform delY.
499    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
500       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
501       this factor is absolutely required, because the lw exitance (= out-going
502       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
503       where the reflectivity rho = 1-emissivity for conservation reasons. Once
504       this is established, we can remove the CPP-Flag (if we want to).
505    o pkg/seaice:
506      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
507        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
508      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
509        what the name implies (and not emissivity*BoltzmannConstant), this means
510        the old default value of 5.5e-8 now means
511        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
512        S/R exf_readparms
513      - FV-discretization of the B-grid LSOR solver, turn on with
514        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
515        of the calling routine dynsolver, so that B and C-grid code look a
516        little more alike.
517      - fix index bugs in ostres.F (B-grid code)
518    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
519    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
520      default for SEAICE_emissivity, if useEXF; requires setting a wrong
521      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
522      backward compatiblity
523    o model/src: use sigmaR in calc_ivdc
524    
525    checkpoint63g (2011/12/16)
526    o pkg/seaice/seaice_growth.F:
527      fix heat conservation of the coupled ocean-seaice system.
528      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
529      solid vs liquid water treatment is resolved via QNET.
530    o pkg/seaice/seaice_growth.F:
531      add missing term for sublimation in saltFlux, which was breaking conservation.
532    o pkg/seaice/seaice_model.F:
533      Remove this patholigical case treatment in evolution branch,
534      where it is un-necessary and breaks conservation.
535      Update global_ocean.cs32x15/results accordingly for
536      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
537    o model/src:
538      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
539      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
540    o pkg/obcs:
541      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
542      tendency for temperature and salinity that is then applied to update
543      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
544      horizontal advection and diffusion contributions on the boundary (in
545      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
546      removing the mask in S/R timestep_tracer. The advantage of this approach is
547      that the updated tracer values include contributions from the surface
548      forcing and vertical diffusion.
549      This modification changes exp4.stevens because of vertical diffusion.
550    o model/src:
551      change non-curvilinear grid setting to also work with exch2 + blank tiles:
552      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
553        face dimensions.
554      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
555        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
556        and INI_SPHERICAL_POLAR_GRID.
557      change test-experiment global_ocean.90x40x15:
558      - split the domain in many more tiles (9x4 tiles of 10x10 each);
559      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
560      - update results of both test (std & dwnslp).
561    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
562       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
563    o model/src:
564      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
565        and fix initialisation when using sigma-coords.
566    o model/src:
567     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
568       to their current value at the beginning of forward_step.F": add a new run-time
569       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
570     - set doResetHFactors=T in the following test exp:
571        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
572        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
573        and tutorial_global_oce_in_p (nonLinFS in p)
574    o pkg/ecco
575      - added IES cost term
576    o verification/advect_xz
577      - scale down the depth by 1/100 (from 200 km to just 2.km)
578      - add secondary test using divergent flow, r-star and implicit vertical advection.
579      - add note (check_conserve_TS.txt) and matlab script to check global
580        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
581    o pkg/rbcs:
582      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
583    o pkg/obcs (Stevens BCs):
584      - fix various problems in the phase speed computations of the Stevens
585        boundary conditions:
586        - sign error for western and southern boundaries,
587        - time tendencies were underestimated by factor of dTracerLev and some just
588          zero (for multidim advection schemes) -> now estimate time tendencies
589          from difference between previous (n) time level and the one before (n-1);
590          this requires storing a field per tracer per boundary, also in the pickup
591          files.
592        - replace deltaTmom in cflMer/Zon computation with dTracerLev
593        - set default phase velocity to cflMer/Zon
594      - update verification experiment exp4.stevens
595    o pkg/generic_advdiff (implicit_r):
596      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
597        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
598      - fix implicit vertical diffusion or advection with NonLin FreeSurf
599        (was using current recip_hFacC instead of future recip_hFacC): set future
600        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
601        solver S/R ;
602      - fill diagnostics of vertical advective fluxes (computed from tendency)
603        when using implicit vert. advection;
604      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
605         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
606         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
607         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
608    o pkg/diagnostics:
609      - add diags for T & S tendency which goes through Adams-Bashforth.
610    
611    checkpoint63f (2011/11/30)
612    o pkg/obcs/obcs_calc_stevens.F:
613      - join some loops to reduce number of if-statements
614      - fix a bug in code for northern and southern boundaries.
615    o pkg/seaice/seaice_init_varia.F
616      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
617        caused zero ice-velocities for the B-grid code
618    o pkg/seaice/seaice_init_fixed.F
619      - fix a bug in the initialisation of the second metric terms
620        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
621      - this affects all seaice configurations with useCurviLinearGrid = .true.
622        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
623        = .true. (default)
624      - the only verification experiment affected is global_ocean.cs32x15:
625        icedyn, seaice, and seaice_dynmix (AD)
626    o pkg/thsice/thsice_diagnostics_state.F
627      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
628        not contain garbage that can lead to surprises in diagstats_calc.F
629    o model/src:
630      - move bi,bj loops inside INTEGR_CONTINUITY ;
631      - call INTEGR_CONTINUITY directly from forward_step.F
632        (previously called from momentum_correction_step.F)
633      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
634        forward_step.F and pkg/ecco/the_main_loop.F
635    o model/src/do_oceanic_phys.F:
636      - reset addMass to zero only if useICEFRONT ;
637      - separated k-loop for rhoInSitu calculation ;
638      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
639        and at constant T,S (= WdRHOdP);
640      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
641        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
642        transport of locally-referenced potential density);
643        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
644    o gluemnc:
645      - replace ncrcat with ncks when adding variables to *.glob.nc
646      - change the way variables without record dimensions are handled so that
647        files that have variables with and without record variables can be glued:
648        add a record dimension with a new unique name to be able to differentiate
649        between variable with and without a-prior record dimensions. Remove
650        this record dimension before adding the variable to the *.glob.nc file.
651        This procedure automatically works also for grid.*.nc files that do not
652        have any record dimension.
653    o verification/cpl_aim+ocn:
654      - generate new reference output on baudelaire (gfortran, mpich2) (previously
655        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
656    o pkg/obcs/obcs_calc_stevens.F:
657      - add code for northern and southern boundaries.
658      - reorder some loops to save some operations and so that drFBar can be scalar
659    o model/src:
660      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
661        truncation) and add diagnostics for Adams-Bashforth tendency increment.
662      - update test-exp. AD output:
663        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
664      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
665        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
666        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
667        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
668        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
669        tutorial_plume_on_slope.
670    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
671      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
672      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
673      does not even come with an F77 compiler anymore, this should not be
674      a limitation
675    
676    checkpoint63e (2011/11/06)
677    o pkg/seaice adjoint of LSR:
678      - substantially rework STORE dirs.
679      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
680        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
681        and only perform SOLV_MAX_FIXED adjoint iters.
682        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
683        always goes to same record, meaning that the last forward field will be
684        the one used in the adjoint - an approximation.
685      - now produces non-zero LSR-related gradients, and acceptable gradients for
686        An's zonal (x-z) test case (to be checked in)
687      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
688        (but these are screwed up by the thermodynamics in the first place);
689        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
690        output_adm.txt also reflects changes to seaice_lsr
691      - global_ocean.cs32x15:
692        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
693          (output_adm.seaice.txt was updated)
694        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
695          (output_adm.seaice_dynmix.txt)
696    o test-exp. exp4+stevens:
697      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
698    o pkg/seaice (lsr solver):
699      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
700        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
701      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
702      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
703        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
704      - compute (with new S/R) and print initial (+ free-driff sol. if available)
705        and final residual of linearised system.
706    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
707      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
708    o pkg/obcs: Stevens BCs (still only for east and west)
709      - fix Stevens BCs by using intermediate velocities of previous
710        time step as "baroclinic" contribution rather velocity of one grid cell
711        inside the boundaries; more consistent but makes the entire treatment
712        more complicated, requires new pickup files and two new S/Rs:
713        obcs_copy_uv_n and obcs_save_uv_n
714        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
715        (undefined by default)
716      - silently move computation of some grid factors into separate loops to
717        save some recomputations
718      - add a hack for non-linear free surface
719      - add a verification experiment to exp4 that tests this code
720    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
721    
722    checkpoint63d (2011/10/25)
723    o pkg/obcs + seaice-dynamics:
724      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
725        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
726        values (consistent with an implicit method).
727      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
728        return to older implementation (same results as before); note that none of
729        the "experimental" OBCS_SEAICE options are implemented in the new version.
730      - switch test exp. seaice_obcs to use new version (update output).
731    o pkg/seaice:
732      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
733      - add parenthesis in Water-Ice drag calculations (evp & lsr);
734      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
735        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
736      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
737        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
738    o pkg/layers:
739      - Include potential density as new coordinate (Thanks to David Munday)
740    o pkg/dic:
741      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
742        carbonate computation/output to CALC_PCO2_APPROX
743    o pkg/generic_advdiff
744      - make TAF generate code that vectorizes:
745        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
746    o model/src:
747      - improve vectorization also for adjoint code of
748        solve_tridiagonal and solve_pentadiagonal. As this requires up to
749        5 new 3D-fields, this code is only turned on for the combination of
750        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
751        for singular matrix check (only for TARGET_NEC_SX).
752      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
753        ALLOW_AUTODIFF. This flag now needs to be set outside of
754        solve_tri/pentadiagonal.F
755    o pkg/exf:
756      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
757        optional namelist EXF_NML_OBCS).
758      - add many debug-print (to trace down where pkg/cal error msg comes from)
759    o pkg/mom_vecinv/mom_vi_hdissip.F
760      - rearrange loops so that vectorization is improved and in particular
761        the adjoint routine vectorizes. The code is a little longer now, but I
762        think easier to read.
763        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
764    o pkg/seaice:
765      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
766    o pkg/exch2:
767      - alternative code (without tile x tile matrix) for cumulated (global) sum;
768        used as default; keep using matrix version in adjustment.cs-32x32x1.
769    o tools/build_options:
770      - after merging some MPI and/or multi-threads specific optfiles so that
771        the modified default optfile support both built (using genmake2 -mpi
772        for the MPI built, using genmake2 -omp for OpenMP built),
773        move now obsolete optfiles to tools/build_options/unsupported/
774       (add copy of email sent to support list in doc/optfiles_changes.txt)
775    
776    checkpoint63c (2011/09/28)
777    o pkg/ebm:
778      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
779        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
780    o pkg/seaice (SItracer pickup)
781    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
782      To be done:
783      - thorough testing of missing fields in S/R seaice_read_pickup
784      - thorough matching between generic tracers and specific fields used
785        (e.g. volume-weighted age, area-weighted age, salinity, ...)
786    o pkg/grdchk:
787      - all procs calculate and print finite-difference gradient (for testreport)
788      - change description output used by testreport;
789      - AD testing: also compare and report Finite-difference gradient;
790        => update all output_adm*.txt
791    o test exp. global_ocean_ebm:
792      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
793        and turn on exactConserve; update (fwd) output.
794    o pkg/seaice (LSR):
795      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
796      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
797        * identical results with non-CS topology (but save up to half of EXCH calls)
798        * no much changes in cs-32 verification tests since no ice at face edges
799         (differences due to convergence criteria, since nb of iterations changed)
800        * expect some differences on lat-lon-cap grid.
801        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
802    o pkg/exch2:
803      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
804        many tiles); until alternative coding is added, just add a stop.
805    o pkg/kpp:
806      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
807        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
808    o optfiles:
809      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
810        into corresponding standard one, which now support different build:
811        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
812      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
813    o pkg/obcs (seaice):
814      - add missing EXCH for uIce,vIce after applying OBCS;
815      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
816        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
817        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
818      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
819      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
820        and eedata.mth for MPI and mutlti-threaded testing.
821    o pkg/flt:
822      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
823      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
824      - fix pickup and trajectories + profiles output with multi-threads;
825      - add parameter to select group of fields to write along trajectory and
826        profile (default unchanged);
827      - only call PORT_RAND* function when flt_noise <> 0;
828      - add multi-threaded test for verification exp. flt_example.
829    o eesupp/src:
830      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
831      - USE_OMP_THREADING: check that number of threads (from eedata) matches
832        actual number (from env.var. setting).
833    o pkg/ebm:
834      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
835      - add multi-threaded test for verification exp. global_ocean_ebm
836    
837    checkpoint63b (2011/08/29)
838    o pkg/ebm:
839      - fix sign of runoff;
840      - update directly forcing fields (Qnet,EmPmR) to use standard
841        external_forcing_surf.F (remove ebm_forcing_surf.F);
842      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
843      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
844        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
845      - update global_ocean_ebm parameters file data and update output (fwd+ad).
846    o verification/matrix_example:
847      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
848        MPI and mutlti-threaded testing.
849    o pkg/matrix:
850      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
851      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
852      - fix for multi-threaded (remove DATA statement);
853      - use standard DIFFERENT_MULTIPLE function;
854      - add MATRIX_OPTIONS.h
855    o verification/matrix_example:
856       To allow to split the domain in several tiles, change the domain size
857        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
858        Western side) of land points.
859    o (*_)write_pickup:
860      - fix few bugs in mypackage_read/write_pickup.F
861      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
862        array of length 1 (was caught by compiler syntax-check).
863    o pkg/diagnostics (velocity potential solver):
864      - fix initialisation of main diagonal matrix (for overlap values)
865    o tools/build_options:
866      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
867        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
868      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
869        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
870        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
871        and use "-devel" testreport option for standard testing on baudelaire.
872    o pkg/grdchk:
873      - Assume that all gradient-check position are within the same tile
874        corresponding to global indices (iGloTile,jGloTile) and that
875        positions (i,j indices or nbeg) are local to this tile;
876      - set tile local-indices and proc. number according to tile global-indices;
877      - remove grdchkwhichproc from namelist (retired param);
878      - send adjoint gradient to all procs so that all procs print it to STDOUT;
879      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
880    o adding package bbl (Bottom Boundary Layer)
881      description in MITgcm/pkg/bbl/bbl_description.tex
882      example/test experiment in MITgcm_contrib/bbl
883    o adjoint verifications
884      - changed 5 experiments to multi-tiles
885        * global_ocean.90x40x15
886        * obcs_ctrl
887        * offline_exf_seaice
888        * tutorial_dic_adjoffline
889        * tutorial_tracer_adjsens
890        changed reference output for those that crossed tile boundaries
891        (changed choices of gradient check positions)
892      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
893      - temporary bug fix in grdchk_loc.F for obcs
894    o genmake2 & testreport
895      - add target "obj" (just for OBJFILES files) to Makefile;
896      - add option to specify FEXTRAFLAGS on command line.
897    o pkg/mypackage:
898      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
899    
900    checkpoint63a (2011/08/02)
901    o pkg/diagnostics (velocity potential):
902      - fix velocity-potential calculation when using OBCS: balance net inflow
903        at each level (new S/R OBCS_DIAG_BALANCE).
904      - fix some of the problems with OBCS in stream-function calculation.
905    o pkg/exf/exf_readparms.F
906      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
907        EXF_NML_OBCS) more consistent, so that you need not have these lists
908        in data.exf when they are not used.
909    o optim/optim_readdata.F:
910      - add some output about obcs variables that might help debugging
911      - add a check about nvarlength
912    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
913    o pkg/diagnostics (velocity potential):
914      - fix mask for OBCS (still problems in stream-function with OBCS);
915      - add specific parameter (default = main code CG2D params) for solver;
916      - in case of poor convergence, use solution corresponding to lowest residual.
917    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
918      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
919      and should be avoided where possible.
920    o model/src (rStar):
921      - include r* effect on reference-state (PhiRef) in totPhiHyd
922        (so that it's really the potential anomaly at the cell center);
923        affect solution only if z* with full pressure in EOS.
924      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
925        update output (because of z* in totPhiHyd and viscA4 changes);
926      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
927        @ constant r) until interpolation at constant r is implemented.
928    o pkg/diagnostics
929      - fix RCENTER diagnostics in case cell center is not at interface middle
930    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
931      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
932      that THETA and SALT are "conservative temperature" and "absolute
933      salinity"
934    o pkg/ctrl
935      - fix computation of endrec in s/r ctrl_init_rec
936      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
937    o pkg/seaice/seaice_growth.F
938      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
939        remove then obsolete STORE directives
940      - fix STORE directives for tice and tices, so that only the
941        appropriate part of the fields are stored (and not the entire
942        field); update global_ocean.cs32x15.seaice AD output.
943      - cosmetic changes: adjust CPP flags and indentation for better
944        legibilty
945    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
946      Chris Wilson)
947    o pkg/gmredi:
948       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
949       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
950    
951    checkpoint63  (2011/07/11)
952    o pkg/exch2:
953     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
954     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
955       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
956       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
957    o pkg/diagnostics:
958     - deal with pairs of post-processed diags which are computed together; in
959       particular, re-order list of diags within 1 file to save 2nd computation.
960     - add S/R to compute velocity stream-function (called after velocity-potential
961       calculation) from divergence free transport -> new diagnostics "PsiVEL".
962     - add parameter to select grid-point location where PsiVEL == 0.
963    o eesupp/src:
964       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
965       (specific S/R needed with exch2 topology - for now, just print an error msg)
966    o pkg/shelfice
967     - Implement friction velocity-dependent transfer coefficients following
968       Holland and Jenkins, JPO, 1999
969       Original code by M. Losch with small modifs.
970       Enable with CPP option SHI_ALLOW_GAMMAFRICT
971       and runtime flag SHELFICEuseGammaFrict
972    o verification lab_sea & global_ocean.cs32x15:
973     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
974       does not miss some dependencies (but is slower) and also works with many files
975       (default makedepend limitation for AD built).
976     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
977    o pkg/diagnostics:
978     - add run-time parameter "useMissingValue" (def=False) to fill land-point
979        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
980       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
981     - Extend the use of "missing_value" setting from data.diagnostics for the case
982       of counter-diagnostics (where fraction-weight is zero). This applies both to
983       MNC and MDS output files.
984    o pkg/seaice/seaice_growth.F:
985      - add 'a priori' cap of latent heat flux based on actual mass considerations
986        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
987        non-legacy seaice_solve4temp.
988      - add diagnostic of the residual sublimation freshwater flux (the freshwater
989        flux taken from the ocean if the total actual latent heat fluxes exceed
990        the maximum)
991      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
992       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
993      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
994       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
995      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
996      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
997    o verification 1D_ocean_ice_column:
998       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
999       update results
1000    o pkg/diagnostics:
1001     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
1002       which are not filled-up but computed from other diags ; In this case, the mate
1003       diag points to the primary (filled-up) diag to used for post processing.
1004     - Update Velocity-potential computation using post-processed diag framework.
1005     ==> Change the ordering of fields and time-periods in MDS output file
1006       when using periodic averaging: now writes one time record with the full set
1007       of fields for this time period, then the next time reccord (it used to be
1008       one field with the full set of time records then the next field).
1009         Note: this is now similar to NetCDF (MNC) output file. <==
1010    
1011    checkpoint62z (2011/06/21)
1012    o adjoint monitor:
1013     - Add adjoint monitor output for packages exf, seaice
1014       and update relevant testreport output
1015    o pkg/seaice:
1016     - re-order diags inits so that they appear in order in available_diagnostics.log
1017     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
1018       area/heff/hsnow preceeding thermodynamic growth/melt.
1019     - modified diag: SIdA; output actual effect, as the description states.
1020     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
1021     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
1022       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
1023        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
1024     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
1025     - added diagnostics for seaice generic tracers (SItr*).
1026     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
1027     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
1028     I. Fenty: 18-Jun-2011:
1029     Minor changes to seaice package:
1030     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
1031        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
1032       - Differentiated "regularization variables" from "floor variables"
1033        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
1034        * hiceMin became SEAICE_hice_reg (old hiceMin)
1035          (with _reg meaning regularization variable)
1036       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
1037        so as to ensure energy conservation when going between phases
1038      - A22 was not used anywhere
1039     2) Changed regularization procedure for heffActual and hsnowActual to ensure
1040        well-boundedness and smooth adjoint in seaice_growth.F
1041     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
1042        because the old regularization always set heffActual >= 0.05 cm
1043     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
1044        on AREA when HEFF > 0.
1045      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
1046        requiring that DISABLE_AREA_FLOOR *not* be defined
1047     Affected verifications:
1048      - 1D_ocean_ice_column (output.txt output_adm.txt)
1049      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
1050    o pkg/diagnostics:
1051      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
1052      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
1053        (was _RL, now integer) with option = 0 to retrieve all levels.
1054      - add pieces of code to compute velocity potential at each level (new diagnostics
1055        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
1056        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
1057      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
1058        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
1059        and in diagnostics_fract_fill.F (do not need a valid pointer for the
1060        diagnostics counter-mate); check that definition of counter-diagnostic
1061        includes a valid counter-mate (in diagnostics_set_levels.F).
1062    o model/src (rStar):
1063      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
1064        affect solution only if z* with full pressure in EOS;
1065        update output of test-exp global_ocean.90x40x15.
1066    o pkg/seaice:
1067      - introduce siEps=1e-5 parameter
1068      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
1069      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
1070      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
1071        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
1072        as well as ice cover age and ridging index (attached to AREA).
1073        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
1074        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
1075        Up to SItrMaxNum=3 tracers can be used simultaneously.
1076    o pkg/salt_plume:
1077      -introduce SPsalFRAC run time parameter that sets the fraction of the
1078       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
1079       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
1080    o model debug options:
1081      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
1082        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
1083      - Refine debug-msg printing selection (3 new levels):
1084        debugMode  : controls printing of debug messages (sequence of S/R calls).
1085        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
1086         debLevZero =  0 ; /* level of disabled aux. msg printing */
1087         debLevA =  1 ; /* level of minimum  aux. msg printing */
1088         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
1089         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
1090         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
1091         debLevE =  5 ; /* level of extensive debug printing */
1092        New debugLevel default: with default debugMode value (=F),
1093          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
1094          and if debugMode=T, default debugLevel = 4 (debLevD).
1095        Relation with previous settings:
1096         debLevB (=2) corresponds to former debLevA (=1)
1097         debLevD (=4) corresponds to former debLevB (=2)
1098        Note:
1099         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
1100         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
1101            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
1102      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
1103        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
1104    o pkg/obcs:
1105      - change OBCSfixTopo default from True to False (should not change the results);
1106        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
1107    o pkg/thsice:
1108      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
1109        2nd layer seaice sublimation (unlikely to happen)
1110      - use Interior mask for OBCS in thsice_advection.F (similar to what is
1111        done in gad_advection & seaice_advection).
1112    o adjoint:
1113      bug fix spotted by Gael Forget:
1114      seaice_advection and thsice_advection still had
1115      legacy CPP options to avoid CS corner updates for adjoint
1116    o pkg/seaice:
1117      => Change some of the defaults (2011/05/29):
1118         - change SEAICEuseFluxForm default (from False to True)
1119         - change DIFF1 default (from 0.004 m/s to 0. m/s)
1120         And print warnings if DIFF1 is not set in data.seaice and centered
1121          avection scheme is used without any diffusion.
1122      also:
1123      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
1124      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
1125      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
1126        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
1127        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
1128      update results of test exp.:
1129         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
1130             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
1131             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
1132         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
1133         seaice_obcs: output (SEAICEuseFluxForm=T)
1134      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
1135          for standard fwd & AD lab_sea tests (to keep the same output).
1136    o pkg/seaice/seaice_growth.F:
1137      - use Ian Fenty's capping formulas for actual ice
1138      thickness thoughout EVOLUTION branch.
1139      - put treatment pathological case #2) in CPP brackets
1140      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
1141      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
1142    o pkg/seaice:
1143      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
1144      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
1145      also pass fac as a param, which can be 1. (to update the tendency
1146      field) or the time step (to update the field itself).
1147      - seaice_advdiff.F: for multidim, call seaice_diffusion with
1148      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
1149      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
1150      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
1151      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
1152    o pkg/seaice:
1153      diffusion with centered advection scheme (diffus.F & advect.F):
1154      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
1155        to just compute the laplacian of input-field.
1156      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
1157      - fix flux-form version in diffus.F to conserve tracer.
1158      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
1159       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
1160    
1161    checkpoint62y (2011/05/26)
1162    o pkg/seaice:
1163     - seaice_growth.F : in EVOLUTION branch, always include
1164       a_QSWbyATM_cover in qnet (as it should be).
1165     - verification/global_ocean.cs32x15 : update results accordingly
1166       (output.seaice.txt output_adm.seaice.txt).
1167    o pkg/seaice + obcs:
1168     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
1169       equivalent of assuming no tracer gradient outside the OB region.
1170       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
1171     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
1172       after changes above);
1173     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
1174       only at OB location (instead of over a band of OLx width).
1175    o pkg/seaice:
1176     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
1177       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
1178    o pkg/obcs:
1179      - split header file "OBCS.h" into 4 separated files:
1180        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
1181       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
1182         (contain no conditional statement which depends on OBCS options).
1183      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
1184        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
1185    o ctrl, cost, grdchk & autodiff pkgs:
1186      - make options file more standard (like other {PKG}_OPTIONS.h file but
1187        with AD_CONFIG.h); clean-up some of the included header files.
1188    o pkg/obcs:
1189      - do not mask tracer when applying OB (tracer == 0 could generate problems)
1190      - apply tracer OB values to tracer field only at OB location (instead of
1191        over a band of OLx width)
1192      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
1193      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
1194        obcs_apply_tloc.F & obcs_apply_sloc.F
1195    o obcs in model/src:
1196      - call OBCS_APPLY_W only if NonHydrostatic.
1197      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
1198      - reset dEtaHdt and wVel to zero outside OB interior region ;
1199      - leave tracer unchanged outside OB interior region: This has no effect
1200        on the solution but just to prevent unrealistic tracer value outside OB.
1201      - zero out velocity outside OB interior region: This has no effect on
1202        the solution but just to prevent unrealistic velocity outside OB.
1203    o obcs and non-lin free-surf:
1204       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
1205       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
1206       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
1207       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
1208       update results of test-exp. exp4(nlfs).
1209    o exp4 (nlfs) test-exp:
1210       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
1211       with NonLin-FreeSurf); update output.nlfs.txt
1212    o obcs and 2d/3d solver norm:
1213       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
1214       and outside OB interior region (will allow to place OB further inside the
1215       domain). Depending on the domain, can affects cg2d-Norm (previous
1216       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
1217       and cg3d-Norm (previous Norm was computed before canceling OB terms),
1218       e.g. in tutorial_plume_on_slope.
1219      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
1220    o pkg rbcs:
1221      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
1222      - add capability to apply relaxation to horizontal velocity uVel & vVel.
1223    o pkg/grdchk: add gradient check for control variable xx_shifwflx
1224    o pkg/shelfice/shelfice_init_fixed.F
1225      fix CPP-flag combinations
1226    o pkg/seaice: Merge iceage code of Pierre Rampal
1227      * update/change/correct ice age calculations
1228      * add age updates for pathological cases
1229      Probably needs more testing...
1230    
1231    checkpoint62x (2011/05/13)
1232    o pkg/mom_vecinv:
1233       high-order vorticity scheme: use interior masks (maskInW & S)
1234       to zero-out (outside OB) gradient of vorticity.
1235    o verification exp.:
1236       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
1237       hs94.128x64x5 and seaice_obcs ; update results.
1238    o pkg/obcs:
1239      fix bug in OBeta for YZ sections in obcs_exf_load.F
1240    o pkg/ctrl, pkg/shelfice, and optim:
1241      - add new control variable xx_shifwflx (fresh water flux underneath ice
1242        shelves). This is almost as tedious as obcs-ctrl, because the
1243        variables needs its own mask.
1244      - add a cost function term that penalizes the deviation of xx_shifwflx
1245        from the first guess (zero) in analogy to other control variables
1246    o pkg/shelfice:
1247      - start basic adjoint
1248    o pkg/ctrl:
1249      - remove extra 2D field "for good measure" when initializing in
1250        ctrl_set_globfld_[xy/xz/yz].F
1251      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
1252      - improve error messages in ctrl_set_unpack_*
1253    o OBC implementation in momentum:
1254       use interior masks (maskInC,W & S) in momentum S/R:
1255       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
1256       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
1257       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
1258       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
1259       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
1260        (and also with Leith/Smagorinsky harmonic-viscosity).
1261       Update output of experiment dome and exp4 (+nlfs).
1262    o exp4 test-exp:
1263      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
1264        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
1265        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
1266        time-varying OB at Western-side for wVel (NonHyd); update output.
1267      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
1268        and biharmonic-viscosity ; also use prescribed time varying OB.
1269    o pkg/obcs:
1270      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
1271    o model/src:
1272      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
1273      - initialise startTime & nIter0 with unlikely values: allows to set one
1274        from the other without ambiguity.
1275    o seaice_obcs test-exp.:
1276      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
1277    o pkg/obcs:
1278      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
1279        no longer needed with maskInC,W,S in pkg/generic_advdiff.
1280    o pkg/seaice:
1281      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
1282        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
1283      - fixed bug in the initialization of sea ice salinity variable HSALT
1284        in seaice_init_varia.F  (removed dependence on ICE2WATR)
1285    o fizhi-cs test exp.:
1286       switch reference output convention for these 2 non-standard test-exp,
1287        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
1288          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
1289       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
1290    o model/inc:
1291      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
1292        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
1293    o pkg/seaice:
1294      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
1295    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
1296      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
1297        and initial HSALT
1298    
1299    checkpoint62w (2011/04/26)
1300    o pkg/mom_fluxform:
1301      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
1302      - use parameter "sideDragFactor" in no-slip BC side-drag part.
1303      - update output of exp. global_ocean.90x40x15
1304    o pkg/mom_vecinv:
1305      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
1306    o update seaice exp.:
1307      use more consistent parameter values (remove "backward compatability only":
1308       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
1309      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
1310       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
1311    o update test-exp global_ocean.90x40x15:
1312      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
1313      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
1314      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
1315      o turn on zStar & viscA4 in standard set-up (dir input/)
1316        and update output files: output.txt & output.dwnslp.txt
1317    o new AD-test experiment: obcs_ctrl
1318      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
1319    o pkg/dic:
1320      fix two bugs in handling water vapour pressure in carbonate chemistry
1321      and air-sea fluxes. Found by Val Bennington and Galen McKinley
1322      (add DIC Option = WATERVAP_BUG to recover old results)
1323      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
1324    o adding allowInteriorFreezing option to check for water below freezing point
1325      at depth and bring the negative heat anomaly to the surface level
1326    o pkgs _fields_load:
1327      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
1328      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
1329        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
1330        rbcs to get interpolation weights and time reccord number.
1331      - fix multi-threading in aim_fields_load.F
1332      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
1333    o external_fields_load:
1334      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
1335       interpolation weights) to use in a periodic time-series ; do not divide by
1336       time-step to convert to integer:
1337       - this fixes case where externForcingPeriod is not multiple of time-step
1338          (Thanks to Christopher L. Wolfe)
1339       - this fixes case where externForcingPeriod is an odd multiple of time-step
1340         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
1341      store index of time-record which is currently loaded:
1342       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
1343       - needed for the adjoint but not yet used because of extensive recomputations;
1344         (to be fixed soon)
1345    
1346    checkpoint62v (2011/04/02)
1347    o verification/1D_ocean_ice_column added to test Ian Fenty's
1348      pkg/seaice_growth.F modifications for improving sea ice code differentiability
1349    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
1350      (new velocity statistics after changing maskInW & maskInS definition)
1351    o pkg/generic_advdiff with OBCS:
1352      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
1353      equivalent to assumption of no tracer gradient outside the OB region.
1354      This will affect the results if using obcs+biharmonic diffusion.
1355      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
1356    o pkg/obcs:
1357      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
1358      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
1359      in Interior region. No impact on solution but affects Velocity monitor stats.
1360    o pkg/ptracers (adjoint)
1361      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
1362      tape file for each tracer
1363    o model/inc/src and pkg/autodiff: add parameters that allow to turn
1364      of parts of the adjoint code at run time. For now, there are only
1365      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
1366      parameters are set in data.pkg.
1367      This is the lazy coward's version of doing this, but still useful for
1368      debugging. In order to do it right, everything needs to be moved to
1369      pkg/autodiff.
1370    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
1371      the end; this fixes the adjoint balancing code for open boundaries.
1372    o pkg/ctrl:
1373      - change behavior of xx_${varname}period to be analogous to exf-conventions:
1374        xx_${varname}period =   0.,  means time-independent control part
1375        xx_${varname}period = -12., means one-year-periodic monthly control part
1376      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
1377        clean up ctrl_init a little, remove unused variables
1378      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
1379      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
1380    
1381    checkpoint62u (2011/03/15)
1382    o model/src:
1383      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
1384        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
1385      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
1386        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
1387    o pkg/ctrl/obcs/ecco:
1388      - remove obsolete, unused, and partially broken code:
1389        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
1390        ALLOW_CTRL_OBCS_BALANCE
1391      - put a stop statement into ecco/cost_obcsvol.F, but also add
1392        cost_obcsvol to ecco_ad_diff.list
1393    o pkg/ecco: fix counting cost function contributions for obcs (code
1394      by Matt M.) and diffkr for diagnostics
1395    o pkg/ecco, pkg/ctrl, pkg/grdchk:
1396      add cost penalty terms for initial uvel, vvel, eta controls
1397      and I/O for prior error files
1398    o pkg/mdsio:
1399       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
1400       (new argument) to check for tiled file in mdsioLocalDir : this fix the
1401       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
1402    o pkg/ctrl:
1403     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
1404       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
1405       unused and superfluous variables
1406     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
1407    o pkg/ecco
1408     - enable adjoint of Stevens OB
1409    o pkg/ctrl/ecco/grdchk:
1410      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
1411        Fortunately, we do not have any tests for the numerous cpp-flagged
1412        option of "obcs as control parameters" so we will never know
1413        if this is an improvement (but at least now things compile).
1414      - remove an obsolete initialization from ecco_cost_init_barfiles.F
1415      - fix some problems within never used ifdefs to make the code compile
1416    o pkg/obcs:
1417     - Refine Interior mask definition to work with more complex OB (e.g.
1418       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
1419       read in Interior mask from file. Check if Interior mask is consistent
1420       with OB list of indices.
1421    o pkg/seaice
1422     - beginning code for a seaice tracer package,
1423       but currently only used for seaice age: SEAICE_AGE
1424       SEAICE_num = 4
1425       iTracer = 1: area-weighted ice age
1426               = 2: volume-weighted ice age
1427               = 3, 4: template for one-year vs. multi-year ice
1428       data.seaice has new namelist SEAICE_PARM03 for arrays related to
1429       SEAICE_num
1430    
1431    checkpoint62t (2011/03/05)
1432    o pkg/obcs:
1433     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
1434       then normal component. This ensures that the normal component is set
1435       correctly even when it conficts with tangential setting from an other OB.
1436       Affects results of test-experiment seaice_obcs: update the output.txt
1437    o pkg/obcs:
1438     - add code to monitor statistics of dynamical fields at OB.
1439     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
1440       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
1441       - change default: balance the Net inflow through all OB (instead of balancing
1442         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
1443     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
1444       to match Nortern OB inflow (OBCS_balanceFacN=0).
1445    o pkg/seaice:
1446     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
1447    o pkg/seaice (seaice_growth v 1.113):
1448     - reverting seaice_growth to v 1.111 in order to have code with exact bit
1449       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
1450       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
1451       runtime flag SEAICEareaFormula is kept but is inactive
1452    o model/src:
1453     - add new param to scale curvilinear grid distance and area when using
1454       a different sphere radius from the grid-files.
1455     - test/check multi-threads EXCH applied to local variable (cg2d_x)
1456    o adjoint:
1457     - enable adjoint of Stevens OB
1458     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
1459       (a bit delicate because of potentially modified adj. common block structure;
1460       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
1461    
1462    checkpoint62s (2011/02/15)
1463    o pkg/seaice (seaice_growth v 1.112):
1464     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
1465       computing the ice cover tendency from effective thickness tendencies. Include
1466       Ian Fenty's formula.
1467     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
1468       SEAICEareaFormula.
1469     - simplify notations for the various d_HEFF/d_AREA terms.
1470    o pkg/gmredi:
1471     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
1472       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
1473       add a verification test-run (front_relax.bvp) to test GM_useBVP.
1474    o pkg/seaice (seaice_growth v 1.111):
1475     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
1476     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
1477       also melt ice.
1478    o pkg/seaice:
1479     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
1480     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
1481    o pkg/cheapaml:
1482     - from Nico Wienders: New version of this package.
1483    o pkg/flt:
1484     - add CPP options to prevent floats to re-enter the opposite side of
1485       a periodic domain (default: keep periodicity)
1486    o pkg/gmredi:
1487     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
1488       (needed for multi-dim advection).
1489     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
1490    o model/src:
1491     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
1492    o tutorial_tracer_adjsens
1493     - extend to NLFS and replace maskC by hFacC
1494       (change reference output accordingly)
1495    
1496    checkpoint62r (2011/01/24)
1497    o testreport:
1498     - add option -deloutp (-do) to remove output file after successful run
1499     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
1500       extract exact list of procs from this file ; adjust COMMAND by
1501       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
1502    o pkg/ecco: replace old ineffective way of penalizing deviations from
1503      first guess (of obcs) with code by Matt Mazloff
1504    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
1505      exf/cal
1506      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
1507        and handle case of obcs?period == 0
1508        Not affected by these changes: There is still an inconsistency in
1509        the computation of start/endrec for the obcs variables for ALLOW_CAL
1510        defined (see comment by Menemenlis, 7-Mar-2003)
1511      - make S/R ctrl_get_gen_rec return something meaningful even if
1512        ALLOW_CAL is not defined
1513      - ctrl_getobcs?: simplify code so that it does not need to use
1514                       S/R exf_swapfields
1515    o testreport:
1516       allow to test MPI with different number of processors for each experiment:
1517       create file "SIZE.h.mpi" in each build dir.
1518       Note: update of "-command" argument not yet implemented.
1519    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
1520      alleviate the need for additional 3D tapes when using
1521      the non-inear free surface in the adjoint. This is done
1522      by adding an 'update' of hfacc etc. to their current
1523      value at the beginning of forward_step.F.
1524    o pkg/seaice
1525      seaice_lsr: move stress-divergence computations out of outer pseudo-
1526      timestepping loop
1527    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
1528      up, so that the calls of the ctrl_* subroutines are really at the end
1529      of the routine.
1530    o pkg/gmredi:
1531      allow to specify a 2-D horizontal map and a 1-D vertical profil
1532      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
1533    o pkg/seaice:
1534      move lsr iterations from seaice_dynsolver to seaice_lsr.
1535    o pkg/seaice:
1536      reduce memory footprint of seaice mutldim advection tapes,
1537      by using a 2D tape independent of the generic_advdiff ones,
1538      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
1539    
1540    checkpoint62q (2010/12/29)
1541    o model/src:
1542      - check horizontal grid-spacing for unset or zero/negative values.
1543      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
1544    o pkg/flt:
1545      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
1546      - precision of input and output files set according to readBinaryPrec
1547        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
1548      - initial float position from tiled file was not converted to index space
1549        (looks like a bug): fixed to make it similar to initial pos. global file.
1550    o global_ocean.cs32x15:
1551       change SIZE.h of AD set-up to get same tiling as with MPI.
1552       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
1553    o model/src:
1554       add flag to control printing of domain fields (bathymetry, hFac ...) in
1555       ini_mask_etc (call to plot_fieds_xy*).
1556    o pkg/thsice:
1557       if useEXF, some forcing fields are not valid in overlap: fixed by computing
1558       over the interior only + apply EXCH at the end (like with SEAICE advection).
1559    o pkg/mdsio:
1560      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
1561        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
1562      - change barrier call for safe multi-threads access to 3-D shared buffer.
1563      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
1564      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
1565        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
1566    o pkg/flt:
1567      - add fourth-order Runge-Kutta integration
1568      - add basic exch2 support (only 1 facet supported so far!)
1569    o pkg/mdsio+rw:
1570      new S/R to read local (or tile independent) vector (read counterpart of
1571       mds_writevec_loc, and front-end write_glvec_rl/rs).
1572    o global_ocean.cs32x15: additional input_ad.seaice experiment
1573        that uses pkg/seaice rather than pkg/thsice.
1574        (using multidim advection for seaice)
1575    o towards more F95 syntax for array specification in namelist:
1576      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
1577        of all verification experiments.
1578           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
1579          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
1580      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
1581    o global_ocean.cs32x15: additional input.seaice experiment
1582        that uses pkg/seaice rather than pkg/thsice.
1583    
1584    checkpoint62p (2010/12/17)
1585    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
1586        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
1587    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
1588        allow for use of multim. advection in seaice adjoint.
1589    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
1590      - first attempt to close budgets by taking into account the freshwater
1591        flux implied by the sublimation of snow and ice. So far only the
1592        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
1593        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
1594    o eesupp/src:
1595      new S/R with new option (NML_EXTENDED_F77) to change array specification
1596      from F95 standard to commonly accepted extended F77 form.
1597      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
1598      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
1599      for less tolerant f77 compiler (e.g., pgf77, g77).
1600    o globalFiles:
1601      commented out in parameter file "data" since it's not safe with MPI
1602      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
1603      in this case); no longer commented out in restart test (tst_2+2).
1604    o add adTapeDir to specify a special directory where adjoint tapes are
1605      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
1606      and cannot be used together with mdsioLocalDir.
1607    o nesting pkgs:
1608      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
1609      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
1610      - add parameter files + utils dir + output from short run on beagle.
1611    o pkg/seaice:
1612        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
1613    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
1614      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
1615    
1616    checkpoint62o (2010/11/25)
1617    o pkg/exf:
1618      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
1619    o pkg/seaice:
1620      - seaice_ocean_stress: split a loop for better vectorization of the
1621        adjoint code
1622      - seaice_growth.F: fix bug in conservation of freshwater connected to
1623        capping of heff, put contribution into d_HEFFbyNEG
1624      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
1625        by something more sensible (parameters that are what their name implies)
1626      - change some defaults, so that by default exf-parameters are used for
1627        things like rhoAir, cpAir,latent/sensible heat parameters, in order
1628        to reproduce the old results, many data.seaice now contain funny values
1629        for cpAir and latent heat of sublimation
1630    o packages_readparms.F: move exf_readparms up in line so that
1631        exf-parameters are visible for other packages (e.g. seaice)
1632    o debugMode & debugLevel=2:
1633      - differentiate between debugMode & debugLevel=2:
1634        debugMode: controls printing of debug messages (sequence of S/R calls).
1635        debugLevel: controls printing of algorithm intermediate results and stats.
1636      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
1637        => allows to print debug-stats without all sequence of call messages.
1638      - switch control of debug print from debugLevel to debugMode in many S/R.
1639    o pkg/obcs (obcs-sponge):
1640        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
1641        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
1642    o pkg/generic_advdiff:
1643      - record overlap minimum size for each advection scheme;
1644      - refine criteria on overlap minimum size;
1645      - check and stop (in gad_check) if overlap size is too small.
1646    o pkg/obcs:
1647      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
1648        once, in ptracers_implicit.F)
1649      - with seaice: remove test on empty file name in obcs_apply_seaice (always
1650        apply OB values when tile has OB)
1651    o model/src, coriolis setting:
1652      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
1653        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
1654        files (selectCoriMap=3) with any grid.
1655      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
1656    o pkg/seaice/seaice_growth.F:
1657        a few cosmetic changes that reduce the number of lines of code
1658    o pkg/obcs: add boundary conditions following Stevens (1990)
1659      - the code follows old MOM/NAOSIM code
1660      - so far it is only implemented for the eastern and western boundaries
1661        and NOT for pTracers
1662    o pkg/rbcs:
1663      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
1664        beginning of the first rbcs forcing period.
1665      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
1666        offline package, i.e., one file per time, labeled by iteration number;
1667        deltaTrbcs sets the timestep with which the data was generated;
1668        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
1669      - rbcsForcingCycle=0 makes forcing non-cyclic.
1670      - make arithmetic safe for negative times and odd forcing periods.
1671    
1672    checkpoint62n (2010/11/09)
1673    o pkg/seaice:
1674        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
1675    o pkg/obcs:
1676       New S/R to copy tracer value from the OB location to narrow band region
1677        (width = same as overlap) beyond the OB: preserve OB value (needed for
1678        high-order scheme) which were overwritten by EXCH call if in overlap
1679        region. Applied to theta, salt, ptracer and advected seaice variables.
1680       With seaice: use maskInC in similar way as in gad_advection.F,
1681        in seaice_advection.F and advect.F.
1682       Update output of experiment seaice_obcs and change exp4 to test OBCS with
1683        4th order Adv.Scheme. for pasive salt and ptracer.
1684    o tools/genmake2:
1685      - when looking for an optfile (not specified), only search for Fortran compiler
1686        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
1687      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
1688        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
1689      - set default for CPP to "cpp -traditional -P" (was the case without specifying
1690        an optfile, but otherwise default was just "cpp".
1691      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
1692      - when "CC" is not set in the optfile, look for possible C compiler
1693        (instead of just setting CC=cc)
1694      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
1695        => add a ".F" to ".o" rule for source files with no "#include" (such as
1696           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
1697      - move gfortran before g77 in list of possible Fortran compiler (consistent
1698        with reference compiler switch from g77 to gfortran)
1699    o pkg/seaice:
1700      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
1701        seaice_check that stops the model, when the CPP flag is used.
1702      o seaice_growth.F: make capping of ice volume conserving by returning the
1703        capped ice as freshwater to EmPmR. This does not change the verification
1704        experiments but will change runs where the capping is acutally active
1705    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
1706      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
1707         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
1708         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
1709    o tools/genmake2:
1710      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
1711      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
1712      - clean previous genmake log files before anything else.
1713      - change Makefile to remove testreport log files (*.tr_log) and genmake log
1714        files only with "CLEAN" target (instead of "Clean");
1715    o pkg/generic_advdiff:
1716      Change OBCS in multiDim advection (gad_advection.F):
1717       Use maskInC to prevent intermediate update of tracer-field in OB regions,
1718       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
1719       which were applying future time-step OB values.
1720      This way, all explicit calculations use current-time-step OB values
1721       (simpler and more consistent).
1722      Affects results when set-up uses time-varying OBC and multi-dim advection;
1723       update output of experiment seaice_obcs.
1724    o pkg/seaice:
1725      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
1726       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
1727         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
1728      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
1729       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
1730       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
1731    o pkg aim (2010/10/26):
1732      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
1733        formulation with obliquity, eccentricity, ... as run-time parameters,
1734      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
1735        upward shortwave radition at the surface (all-sky and clear-sky).
1736    o pkg/obcs:
1737      - writing sections with globalFiles=T does not work: switch to tiled-files
1738        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
1739      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
1740      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
1741    
1742    checkpoint62m (2010/10/21)
1743    o pkg/seaice: vectorize seaice_solve4temp.F
1744      - move iterations loops outside of i/j-loops
1745      - requires 2D arrays for TB and effConduct
1746      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
1747        modified in this routine
1748      - a little bit of clean up, adjusting indentation, etc.
1749      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
1750        performance and '**TWO' by '**2' (because TWO is a float),
1751        replaced ONE, ZERO
1752    o eesupp/src:
1753       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
1754    o pkg/seaice/seaice_growth.F
1755      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
1756      merging process. The merged routine has two branches, and one activates the 'evolution'
1757      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
1758      In summary, here is what the '10/10 revision' did consist of
1759        part 1: seaice_growth.F revisions 1.71 to 1.75
1760          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
1761            The emphasis here was on improving readability (e.g. by trying to use meaningful
1762            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
1763        part 1.5:
1764          - revising the lab_sea experiment to make it a more useful (i.e. stable
1765            and representative of an actual model run). This was done by generating a
1766            (winter) pickup to start from, switching back the main experiment dynamic
1767            solver from evp to lsr, having one of the experiments use the free drift solution.
1768        part 2: seaice_growth.F revisions 1.76 to 1.85
1769          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
1770          - Sorting out the various fields units and sign (set early on and reset at the end)
1771            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
1772            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
1773          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
1774            and simplifying logical expressions to further improve readibility.
1775        part 3: seaice_growth.F revisions 1.86 to 1.89
1776          - Re-organize the blocks of code more logically.
1777          - Merging the '_if.F' pieces that add something new.
1778    o pkg/thsice:
1779      - vectorize thsice_solve4temp and thsice_get_exf.
1780        Problem: thsice_solve4temp has an unvectorizable statement that
1781        might also be problematic for TAF
1782      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
1783        does not change the verifcation experiment, but will change all
1784        experiments that have this flag undefined (not tested in verification);
1785        a little reorganization to save a few 2D fields and recomputations
1786      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
1787      - 2nd step:  fix some store dirs
1788        o seems to work somewhat, i.e. using ifort but not g77
1789        o likely cause are incomplete init. or recomputation
1790        o start verification/global_ocean.cs32x15/input_ad.thsice
1791    o pkg/obcs: add support for exch2
1792      - the position of the boundary and prescribed values are specified using
1793        a global domain with exch2 facets stacked
1794        - in x for N,S boundaries (like W2_mapIO=-1)
1795        - in y for E,W boundaries (so E,W boundaries do not overlap)
1796    o pkg/mdsio: add support for writing global sections with exch2
1797        file layout is as for obcs described above:
1798        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
1799        - for y-z sections, facets are stacked in y
1800    o pkg/thsice:
1801       - change a few routines for better vectorization: thsice_albedo.F,
1802         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
1803         not affected, but in particular the latter routine has changed
1804         dramatically (not necessarily easier to read now).
1805       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
1806       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
1807    o verification/lab_sea:
1808      - overhaul of the forward model experiments. The main motivation
1809        for this revision is that lab_sea has proven quite fragile (when
1810        changing the sea-ice code, and switching platforms) to a point
1811        when failures were very hard to attribute to specific code problems.
1812      - the suspected reason for this fragility is noise amplification by evp so,
1813        to start with, we decided to replace evp with lsr in the main experiment.
1814      - the input.lsr experiment thus became obsolete and was removed.
1815      - it was replaced with the input.fd experiment that uses an
1816        analytical "free drift" solution as the ice velocity field.
1817      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
1818        will hopefully allow us to discriminate problems due to dynamic solvers
1819        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
1820        us to test additional options, along with the salt plume package.
1821      - Finally a pickup was generated (at the end of a one year run) to
1822        make the tests more representative of an actual model run. Previously
1823        the tests starting point was a 1m thickness of ice everywhere.
1824    o pkg/seaice:
1825      - introducing S\R seaice_freedrift.F that compute the
1826        analytical solution to an approximate ice momentum
1827        equation (i.e. the simple stress/coriolis balance).
1828      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
1829        of the free drift velocity field, and enable its use.
1830        To actually use the free drift solution as the model ice
1831        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
1832    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
1833    
1834    checkpoint62l (2010/10/04)
1835    o pkg/seaice:
1836      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
1837      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
1838       version (with USE_ORIGINAL_SBI undef);
1839    o add hooks for new packages OASIS, the package will follow
1840      (hooks exclude the seaice pkg for now)
1841    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
1842      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
1843      rather than mdsio_readvector.F/mdsio_writevector.F, within
1844      adread_adwrite.F to read/write adjoint-related tapes to disk.
1845    o eesupp and pkg/mdsio: ALLOW_WHIO
1846      Option to write/read 2D fields to files including tiles halos.
1847      The main purpose is for adjoint related "tape I/O".
1848      The secondary purpose is for debugging phases.
1849      A word on those rather specifically intended purposes.
1850      The code was meant to be stripped down to the bare minimum.
1851      Typically, there is a unique and basic mapping to the global
1852      buffer (tile by tile, then proc by proc, then level by level), and
1853      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
1854      meant to generate user friendly outputs of various shapes and forms.
1855      Rather it is intended, for the knowledgeabale developers,
1856      to be largely independent of the many mdsio options, to allow
1857      outputs of tiles+halos in debugging phases and in adjoint runs,
1858      and to allow some flexibility in tuning (adoint) I/O depending on each
1859      file system behavior. With regard to tuning, most of the potential knobs
1860      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
1861      to specify directories, to specify the typical size of I/O calls, etc.)
1862      are not yet included, and will be added if they prove useful.
1863    o pkg/seaice:
1864       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
1865    o pkg/seaice:
1866       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
1867       code (seaice_budget_ice_if.F) which enable to recover old standard
1868       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
1869       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
1870    o model/src (rStar):
1871       use simple average (not area weighted) of rStarFac at U,V point when using
1872       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
1873       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
1874    
1875    checkpoint62k (2010/09/17)
1876    o adjoint
1877       * changed verification/global_ocean.cs32x15 ; adjoint now tests
1878         Adams-Bashforth 3 + NLFS + RSTAR
1879       * some more modifs required for ECCO-GODAE v4
1880    o pkg/seaice
1881       add SEAICE_AGE_VOL option to use volume instead of area for
1882       integrating SEAICE_AGE
1883    o model/src:
1884       first check-in of sigma & hybrid-sigma coordinate code ; also includes
1885       non-linear free-surface parts ; but pressure-gradient not yet coded.
1886    o pkg/ptracers:
1887       option for ptracer to convert Salt Relax into additional EmP.
1888        tested in exp. global_ocean.90x40x15.dwnslp (update output)
1889    
1890    checkpoint62j (2010/08/25)
1891    o pkg/ggl90:
1892       other minor changes: remove 3-D temp array gTKE (+ add argument myIter)
1893    o pkg/dic: car_flux.F, phos_flux.F
1894      - reduce number of exp-calls in order to improve performance
1895      - clean up a little (replace fields by their macros, etc., fix
1896        typo in CPP-flag)
1897    o pkg/ggl90: minor changes
1898      - GGL90diffKrS was removed --> always use GGL90diffKr
1899      - GGL90viscAr was removed --> replaced with GGL90viscArU, GGL90viscArV
1900      - hack of mxlMaxFlag=2 --> ensure mixing between first and second level
1901        (commented out for now)
1902      - change in max/min operations to ensure that smoothing is ok
1903      - smoothing of GGL90viscAr was moved to ggl90_calc.F (as done for GGL90diffKr)
1904      - always use diffKrNrT as background profile (i.e. never use diffKr field)
1905    o pkg/cfc: bug fix, AREA(i,j,1,bi,bj) -> AREA(i,j,bi,bj)
1906    o pkg/dic:
1907      - model/src/impldiff.F: if TARGET_NEC_SX, extend loop ranges for better
1908        vectorization
1909      - small bug fix in insol for the unlikely case of a cartesian grid
1910      - towards vectorizing the dic package: bio_export.F, car_flux.F, phos_flux.F
1911        + now vectorize, which also removes adjoint recomputations;
1912        + replace integer maksp1 by _RL maskp1
1913        + replace a**x by exp(x*log(a)) in phos_flux.F for speed
1914    
1915    checkpoint62i (2010/07/21)
1916    o pkg/flt:
1917      - with OBCS: stop floats which enter the OB region
1918    o model/src:
1919      - use tempVertAdvScheme & saltVertAdvScheme (instead of horizontal ones)
1920        for implicit vertical advection.
1921    o pkg/seaice:
1922     - account for melting in seaice age evolution.
1923     - remove double counting of seaice ridging effect on seaice age.
1924    
1925    checkpoint62h (2010/06/18)
1926    o pkg/exch2:
1927     - remove exch2_*xy_rx files: call was replaced with exch2_*3d_rx(myNz=1).
1928    o tools/genmake2
1929      - remove "-pdefault" option: redundant with the use of "packages.conf";
1930      - remove file pkg/pkg_default : set the default as a pkg group
1931        ("default_pkg_list") defined in pkg/pkg_groups;
1932      - fix for case pkg/pkg_depend is missing (was hanging before);
1933      - add option "-pgroups" to specify a different pkg_groups than the default.
1934    o verification/adjustment.cs-32x32x1:
1935       add a "minimal" set-up test (code_min & input_min) which only compiles
1936       eesupp/src and the 2 pkgs (exch2 & debug) which don't need model/src & inc.
1937    o tools/genmake2
1938      - extend pkg_depend rules to model & eesupp (e.g., if model depend on [pkg]))
1939      - fix details of checking for mnc & profile pkg when NetCDF is unavailable.
1940    o pkg/exf: merge exf_bulk_largeyeager04 into exf_bulkformulae because these
1941      files are nearly the same anyway.
1942      Step 1: make exf_bulkformulae look like exf_bulk_largeyeager04:
1943       - redefinition of tau(i,i) (by a factor of ustar)
1944       - 1./exf(Const/T) -> exf(-Const/T) (big change in the results)
1945       - replace rhonil by rhoConstFresh in computation of evap (bug fix)
1946       - replace u/vstress=tau*rd*ws*cw by tau*rd*u/vwind (changes results)
1947       - replace
1948         rd(i,j)= rdn(i,j)/(exf_one - rdn(i,j)/karman*psimh )
1949         shn    = sh(i,j,bi,bj)*rd(i,j)/rdn(i,j)
1950         by
1951         shn    = sh(i,j,bi,bj)/(exf_one - rdn(i,j)/karman*psimh )
1952         (changes results)
1953       -> exf_bulkformulae v1.22,
1954          update verification experiments lab_sea, offline_exf_seaice, seaice_obcs
1955          (lab_sea: output.hb87.txt 1.11, output.lsr.txt 1.25, output.salt_plume.txt 1.13,
1956                    output.txt 1.63
1957           offline_exf_seaice: output.seaicetd.txt 1.7
1958           seaice_obcs: output.txt 1.10)
1959      Step 2: do the actual merge and remove exf_bulk_largeyeager04.F
1960       -> exf_bulkformulae v1.23,
1961          unfortunately requires updating lab_sea.salt_plume (6 matching digits),
1962          and global_ocean.cs32x15.icedyn (only 11 matching digits)
1963      Also update output_adm of exp. lab_sea (all 4) and offline_exf_seaice.
1964    o adjoint of exch-1:
1965     - pass high-level EXCH S/R through TAF (eesupp/src/exch_ad_diff.list)
1966       (note: was already like this when using EXCH-2) and remove flow dir
1967       and hand-written AD version of high-level EXCH S/R (pkg/autodiff);
1968     - provide flow-dir for low-level exch1 S/R (eesupp/src/exch1_ad.flow);
1969     - update pkg/exch2 diff list.
1970    
1971    checkpoint62g (2010/05/19)
1972    o eesupp/src (exch-1):
1973     - split exch_rx.F into Forward S/R (exch1_rx.F) and Adjoint S/R (exch1_rx_ad.F)
1974       and remove argument "simulationMode"; same thing for all exch_*rx_cube.F
1975       (renamed to exch1_*rx_cube.F).
1976     - change accordingly exch_*_rx.template and AD version in pkg/autodiff
1977       to call new exch1 S/R ; update Makefile and .cvsignore.
1978     - replace call to exch2_xy_rx S/R with exch2_*3d_rx(myNz=1) (will remove
1979       exch2_xy_rx later)
1980      Note: after updating your code, need to run "make clean" in eesupp/src
1981    o test experiment bottom_ctrl_5x5:
1982       new output_adm.txt with fewer grdchk & less monitor output.
1983    o model/src:
1984      remove the call to ini_cori in initialise_varia.F (just keep the usual one
1985       in initialise_fixed.F). More consistent with coriolis & horizontal grid
1986       beeing treated in the same way (ini_grid is not called a 2nd time).
1987    o pkg/exf:
1988      - rewrite exf_bulk_largeyeager04.F for better vectorization, changes
1989      global_ocean.cs32x15/input.icedyn (11 digits of agreement), updated
1990      - fix adjoint (used worked for ALLOW_ATM_WIND defined, works for this now)
1991      - cosmetic changes to exf_bulkformulae.F to make it look more like
1992        exf_bulk_largeyeager04.F
1993    o eesupp/src (exch-1):
1994      - Fix AD EXCH code for 2-D domain special cases (Nx=1 or Ny=1).
1995      - Separate buffer filling and MPI sending: allow EXCH-1 to work for local
1996        array (non-shared) when using MPI+MTH. Also reduces number of BARRIER
1997        (even without using MPI).
1998      - Message mode: move RecvAck setting (indicator of buffer being ready)
1999        from send_put to recv_get S/R (was useless before, but not sure if
2000        it's much more useful now);
2001      - Switch the order of sync: MPI-proc 1rst and then threads;
2002      - take out spin-waiting code (#undef EXCH_USE_SPINNING), use BARRIER instead.
2003      - fix AD code for communication mode ='get' (but not used).
2004    o model/src:
2005      initialise dPhiHydX,dPhiHydY inside calc_grad_phi_hyd.F (so that TAF does
2006      not drop it in S/R mddynamics, producing NaN in hs94.1x64x5 AD-test exp).
2007    o utils/matlab/rdmnc.m: adapt to be able to use the generic matlab netcdf API
2008    o pkg/ctrl: require a specific set of control variables and exf-flags for
2009      adjoint of seaice (stop in ctrl_check.F if conditions are not satisfied)
2010    o model/src:
2011     a) 1rst version of a new driver S/R to turn-off output freq and flags after the
2012       1rst forward sweep, to avoid over-writing output files during recomputations
2013       recomputations (& grdchk); called from cost_final.F (& ctrl_init_ctrlvar.F ?)
2014     b) 2nd version:
2015      - add specific pkg S/R for seaice & ptracers (called from S/R TURNOFF_MODEL_IO);
2016      - switch-off more output flags (exf_monFreq, chkPtFreq, dumpInitAndLast,
2017         writePickupAtEnd) + seaice & ptracers output;
2018      - do not switch off MNC flags (otherwise, won't get admonitor netcdf file)
2019    o model/src:
2020      - new S/R rotate_uv2en_rl (..._rs) that rotates vector fields.
2021    o pkg/exch2:
2022      - remove "simulationMode" from arg. list of S/R EXCH2_RX1,2_CUBE ;
2023      - add argument "signOption" to EXCH2_RX1_CUBE (will be needed for SM exch).
2024    o pkg/autodiff & exch2:
2025      process exch_uv_agrid_3d_rx.f & exch2_uv_agrid_3d_rx.f through TAF
2026      (for now, only if ALLOW_EXCH2 is defined).
2027    o pkg/autodiff:
2028      - include PACKAGES_CONFIG.h in exch*ad.flow & exch*ad.F
2029        (not supposed to be in CPP_OPTIONS.h) to get ALLOW_EXCH2 defined correctly.
2030       + clean-up comments (_RS is not always real*4)
2031      - fix bug in ADEXCH_UV_3D_RX (without EXCH2, was calling the forward exch S/R)
2032      - add a stop in ADEXCH_UV_AGRID_3D_RX if trying to use it with EXCH2:
2033        was calling a forward exch2, which is wrong ; used in SEAICE & EXF pkgs.
2034    o testreport (AD-tests):
2035      no longer link files from dir "../input" (1rst link files from
2036      "../input_ad.[xx]" if secondary test "xx" and then from "../input_ad")
2037    
2038    checkpoint62f (2010/04/29)
2039    o model/src/the_main_loop.F:
2040      adjust store directives for seaice evp and multicategory according to
2041      pkg/ecco/the_main_loop.F
2042    o adjoint:
2043      global_sum_ad was incomplete (noted many times by many people ;)
2044      nice description by Jean U. as follows:
2045      * allreduce(var) in global_sum.F can be interpreted as
2046        reduce(sum) followed by broadcast of sum.
2047      * The adjoint of that is
2048        sum(adjoint) followed by broadcast(summed adjoint value)
2049        or in other words, allreduce(sum, adjoint vars)
2050      We were missing the sum(adjoint)!
2051      Benign, except(!) for "global" scalars appearing in tile loops (bi,bj)
2052      (noted by J.M. Campin, e.g., in cost_ssh_mean, variable offset).
2053      The fix should produce 16-digit accuracy between
2054      single-CPU multi-tile (e.g. nSx=2, nPx=1) and
2055      multi-CPU single-tile (e.g. nSx=1, nPx-2)
2056      We'll probably change this yet again shortly
2057    o eesupp/src:
2058      - fix global_sum_r4 (wrong from previous modif in Jun 2009; ever used ?)
2059    o pkg/icefront
2060      - ALLOW_SUBGLACIAL_RUNOFF option adds capability for time-evolving
2061        specification of addmass array based on a 2D field, which is added
2062        at bottommost wet level at each horizontal location.
2063    o model/src:
2064     horizontal grid initialisation (other than curvilinear): add code for Exch2 IO
2065     layout; (not always compatible with delX,delY setting; commented out for now).
2066    o pkg/exch2:
2067     change tile to processor setting (case nSy*nPy > 1): allows default model mapping
2068     (myX and myYGlobalLow) to be used for simple (1 facet, no blank tile) config.
2069    
2070    checkpoint62e (2010/04/15)
2071    o pkg/obcs:
2072      - fix wrong index in OBCS_SPONGE_V for Eastern-OB (reported by David Hebert).
2073    o pkg/dic:
2074      -fix bug in fe_chem.F for multi-tile (nSx*nSy > 1) set-up;
2075        (note: not presently tested in any forward verification exp.)
2076       update tutorial_global_oce_biogeo AD output file.
2077    o pkg/exf:
2078      - account for the variation of albedo as a function of zenith angle
2079        by defining ALLOW_ZENITHANGLE in EXF_OPTIONS.h
2080    o build_options:
2081     - rename "linux_ia64_ifort+mpi_ice_nas" to "linux_amd64_ifort+mpi_ice_nas"
2082    o pkg/dic:
2083      change DIC atmos-CO2 box (method 3, dic_int1=3) initialisation & restart:
2084      - use binary pickup file for restart;
2085      - initialise atmos-CO2 box from dic_pCO2 parameter;
2086      - fix multi-threaded.
2087    o pkg/rbcs:
2088     - clean-up RBCS code: add RBCS_OPTIONS.h file ; fix multi-threaded ;
2089       change (+ fix IO calls) type of array RBC_mask from _RL to _RS.
2090     - add RBCS to exp4 passive tracer 01 (rbcs was previously untested)
2091       and update output.txt
2092    o pkg/kpp:
2093     - add diagnostics for KPP non-local flux of Temp, Salinity and pTracers;
2094     - change diagnostic of KPP non-local term: output average of KPPghat*KPPdiffKzS
2095       (= ratio of KPP non-local (salt) flux relative to surface-flux) when
2096       using pkg/timeave & pkg/diagnostics (diag 'KPPghatK' replaces 'KPPghat ');
2097     - change pkg/offline to read-in average KPPghat*KPPdiffKzS from file
2098       KPP_ghatKFile (instead of the average of KPPghat from file KPP_ghatFile).
2099    o pkg/offline:
2100      fix bug in S/R OFFLINE_FIELDS_LOAD regarding surfaceForcing conversion factor
2101      (bug was added in version 1.10 on 2007-08-23).
2102    o pkg/offline:
2103      - no need to specify periodicExternalForcing, etc ... to use offline pack
2104      - offline input files no longer just single prec --> parameter offlineLoadPrec
2105    o verification/lab_sea:
2106      change AD test to multi-tile setup and update all 4 AD output.
2107      NOTE: while cost function values remain very similar,
2108      gradients are very different, although gradient checks are self-consistent
2109      Should try to get to the bottom of this (cost function summation order?)
2110    o pkg/dic:
2111      in carbon_chem.F, replace log10 (AUTODIFF) with explicit form to avoid
2112      a weakness of TAF that drops part of double precision in log10 derivative.
2113      <= changes removed since problem has been fixed in current TAF version 1.9.71
2114      update AD output of exp. tutorial_dic_adjoffline & tutorial_global_oce_biogeo.
2115    o pkg/ecco:
2116      add missing "_d 0" in cost_readers.F, cost_readtopex.F & cost_readtopexmean.F
2117      update all 4 lab_sea AD output.
2118    
2119    checkpoint62d (2010/03/22)
2120    o build_options:
2121      remove '-r8' (and '-i4') from linux_*pgf and linux_*ifort optfiles.
2122    o remove unbalanced quote (single or double) in commented line of source code
2123      (may cause some warning with some preprocessor/makedepend versions).
2124    o pkg/seaice:
2125      fix seaice_model.F for adjoint (gael) and update AD results of experiments
2126       lab_sea (std + evp + noseaicedyn) and offline_exf_seaice.
2127    o testreport:
2128      add option '-runonly' (short: '-ro') to just do the run part (without make).
2129    o eesupp: remove JAM communication code (obsolete).
2130    o add option to genmake2 & testreport to switch "_RS" type to "real*4"
2131      (if allowed in CPP_EEOPTIONS.h); update default CPP_EEOPTIONS.h and return
2132      to default CPP_EEOPTIONS.h for exp. inverted_barometer & solid-body.cs-32x32x1
2133      (update also the output).
2134    
2135    checkpoint62c (2010/03/02)
2136    o tools/build_options :
2137       move (some) old optfiles from build_options/ to build_options/unsupported/
2138    o model/src and pkg/exf
2139       surface relaxation -- separating data and data.exf options
2140       The point is to ensure that we specify the surface relaxation
2141       either in data or in data.exf (but not half and half) and to
2142       avoid an accidental relaxation to 0 (which happened if a time
2143       scale was specified but the file name was left empty)
2144    o model/src model/inc and pkg/mom_common
2145       ALLOW_3D_VISCAH/ALLOW_3D_VISCA4 => 3D specification of Viscosity
2146       => addition to the viscosity field as computed by others schemes
2147    o tools/build_options:
2148      - rename "_generic_mpi" -> "+mpi_generic" (like other "+mpi" optfile)
2149        but keep the former optfile for few weeks for smooth transition
2150    o pkg/ecco
2151      - allow user defined cost function contributions
2152         CPP: ALLOW_USERCOST_CONTRIBUTION
2153         USAGE: compute contributions in cost_usercost_all.F
2154      - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
2155          the two options are complementary.
2156    o pkg/smooth
2157      - migration from contrib to the main repository
2158    
2159    checkpoint62b (2010/01/26)
2160    o pkg/monitor:
2161      - change back mon_printstats_rl.F & mon_stats_rl.F and add a stop
2162        (in case someone forgot to update customized pieces of code)
2163    o nonHydrostatic:
2164      - add Non-hydrostatic free-surface form (selectNHfreeSurf=1)(not fully tested);
2165      - add a simple 2-D experiment (short_surf_wave) to test it.
2166    o pkg/icefront:
2167       adding the shell of, and the hooks to, a new package that
2168       will model melting and freezing of vertical glacier ice fronts
2169    o momentum:
2170      add diagnostics of momentum tendency from Hydrostatic pressure gradient
2171       (without surf.pressure term: would need a 2nd filling since implicit term).
2172    o add 3 "_d 0"s so that fizhi compiles with xlf on iblade, and replace
2173      two " &end" by " &" (in fizhi-cs-*) because S/R NML_SET_TERMINATOR
2174      cannot deal with the former
2175    o cleaning:
2176      - remove all (except OpenAD) old TLM output from results_ad dirs.
2177      - remove unused S/R (MDSWRITEMETA, DIAGNOSTICS_ADD2LIST, old DFILE IO S/R)
2178      - comment out maskH definition (replaced by maskInC)
2179    o pkg/monitor:
2180      - change mon_printstats_rl.F & mon_stats_rl.F (were similar to mon_writestats_rl
2181        & mon_calc_stats_rl) to be the RL equivalent of mon_printstats_rs & mon_stats_rs.
2182    
2183    checkpoint62a (2010/01/15)
2184    o model/src:
2185      - bottom pressure diagnostic: correct for r* (when nonlinFreeSurf >= 4)
2186    o pkg/diagnostics:
2187      - add optional level number diagnostics (i.e., level number to be define
2188        explictly with S/R DIAGNOSTICS_SETKLEV) with parser-code(10)="X".
2189      - strictly check for valid parser-code(10) ;
2190      - check if adding diag to the list from the right place.
2191    o pkg/longstep:
2192      - change parameters and fix tracer conservation with rstar/nonlinear free surface
2193    o diagnostics:
2194     - in all pkgs, replace remaining calls to old S/R DIAGNOSTICS_ADD2LIST with newer
2195       S/R DIAGNOSTICS_ADDTOLIST ; fix seaice VICE diagnostics.
2196    o pkg/diagnostics:
2197     - Add option for writing vertical integral (sum of selected levels) of an output
2198        field instead of writing output field levels. Activate this option on a per
2199        output-file basis, by setting the 2nd character of fileflag to 'I'.
2200     - Add field-specific information relative to level integral in 3rd postion
2201        of parser diagnostics code (gdiag): " "=cumulate levels, "R"=integrate
2202        vertically (x level-thickness x hFac), "r"=same but without hFac.
2203    o do_the_model_io:
2204      - pass end-of-model-run flag as argument, from forward_step to diagnostics_write:
2205        in case useSIGREG, will write (averaged) diagnostics (if dumpAtLast) before
2206        writing pickups and stopping.
2207    o pkg/diagnostics (for now, only with mdsio):
2208      - write time information to meta file (and modify accordingly rdmds.m) :
2209        time-averaged diagnostics output: write starting and ending time of the
2210        time-averaging interval ; snap-shot diagnostics output remains unchanged;
2211    o pkg/timeave:
2212      - S/R TIMEAVE_NORMALIZ: change size of cumulated-time array (was previously
2213        always Nr), now assumed to be equal to number of levels of averaged field;
2214        only used for DIC_COST monthly mean arrays: this fixes dic_aver_final.F
2215    o pkg/sbo:
2216      - fix ocean bottom pressure global-average & 2-D time-ave output (was
2217        neither initialised nor filled).
2218      - add starting iteration in suffix of global-average output file
2219        (to avoid over-writing the file after a restart)
2220      - use standard MDSIO pkg S/R instead of SBO_WRITEVECTOR (fix byte-swap Pb).
2221    o time-average:
2222      - use simple cumulative-time array (no k index) in all pkgs: {PKG}_timeAve(bi,bj)
2223        (pkgs: aim_v23, bulk_force, dic, gmredi, kpp, land, ocn_compon_interf,
2224         ggl90, my82, opps, pp81, ptracers, sbo, seaice, shelfice, thsice)
2225        this fix DIC_COST cumulative-time array (previously: bi,bj,k)
2226      - fix 1rst call (nIter0) snap-shot output and accumulation (pkg/shelfice)
2227      - fix missing accumulation for pkg/opps.
2228      - cumulate fields only if doing time-ave output ({PKG}_taveFreq > 0)
2229         (pkgs: ptracers, kpp, ocn_compon_interf, ggl90, my82, pp81);
2230      - fix initialisation of time-ave vars and do only full time-step increment
2231        (i.e.: no first & last "half time-step") (pkgs: ggl90, my82, opps, pp81);
2232    o pkg/layers:
2233      - use standard RW pkg S/R to write the output
2234        and remove local write_fld version (which had a problem).
2235      - use simple cumulative-time array (no level index) to fix time-ave S/R calls.
2236      - fix LAYERS_CALC argument list.
2237    o pkg/timeave:
2238      - store cumulative-time in a simple tiled array (drop the level index)
2239      - add new S/R (TIMEAVE_NORMALIZE) which uses simple cumulative-time array.
2240    o pkg/ocn,aim_compon_interf
2241      - changes for multi-threaded coupled run. (tested with ifort-11 on danton)
2242    
2243    checkpoint62  (2009/12/23)
2244    o switch on useOBCSbalance in tutorial_plume_on_slope exp. and update output.
2245        (was not previously tested in any other exp.)
2246    o pkg/monitor:
2247      - clean-up _RL/_RS version: add specific S/R for statistics with mask & volume:
2248        mon_writestats_rl/s,F mon_calc_stats_rl/s.F ; will keep the old one
2249        (mon_printstats_rl/s,F mon_stats_rl/s.F) just for bare statistics.
2250      - use hFac & 2-D mask (instead of 3-D mask + hFac in previous mon_stats_rl.F).
2251      - change del2 calculation.
2252      - use interior masks (instead of maskH, <- to be remove).
2253      - shorter monitor suffix for forcing stats ("forcing" instead of "extforcing").
2254    o mask & obcs:
2255      - define 2-D "interior" masks (i.e., zero beyond OB) at 3 locations (C, W & S).
2256      - move global area computation from ini_masks_etc.F to ini_linear_phisurf.F
2257        (called after packages_init_fixed)
2258    o pkg/obcs:
2259      - move bi,bj loops into obcs_calc, so obcs_prescribe_read is called only once.
2260        Fixes bug in obcs+exf with nSx*nSy.GT.1
2261      - fix multi-tile handling in obcs balance code
2262    o nonHydrostatic:
2263      - Implement AB-3 for non-hydrostatic vertical momentum ;
2264        (change ordering of var. stored in pickup file when using NH)
2265      - move NH code from solve_for_pressure.F to 2 new S/R: PRE_CG3D & POST_CG3D.
2266      - add 2-D field to store Hydrostatic Surface Pressure adjusment from cg3d_x
2267        (in prep. for new NH free surface form).
2268    o pkg/obcs:
2269      add files & OB-variables for wVel (Non-Hydrostatic) with useOBCSprescribe
2270    o model/src:
2271      fix 2-D solver initialisation for deep-atmosphere (p-coord) with topography
2272    
2273    checkpoint61z (2009/12/01)
2274    o nonHydrostatic:
2275      Fix missing vertical flux of vert. momentum near surface (k=1). This fixes
2276        a spurious source of energy in simple baroclinic adjusment test case.
2277      Update all non-hydrostatic exp output.
2278    o model/src (3-d solver):
2279      Change again 3-D solver free-surface RHS term when exactConserv=T:
2280        simpler, consistent with exactConserv, and works with implicDiv2Dflow < 1
2281        (which was not the case with previous formulation).
2282      To recover previous version, just reset "oldFreeSurfTerm" to previous value.
2283      Affects results of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW.
2284    o nonHydrostatic:
2285      - compatible with implicDiv2Dflow < 1 ; + implement implicit factor
2286        for Non-Hydrostatic pressure gradient (similar to implicSurfPress).
2287      - change 3-D solver to work with r* (for now, only with linear free-surf.)
2288      - add few debug diagnostics (cg3d_x, residual)
2289    o model/src:
2290      fix missing EmPmR in 3-D solver RHS (was in cg2d_b but missing in cg3d_b).
2291        update output of exp. global_ocean.cs32x15.viscA4
2292    o update output of exp. global_ocean.cs32x15.icedyn after removing
2293      #define SEAICE_OLD_AND_BAD_DISCRETIZATION from SEAICE_OPTIONS.h
2294    o add entry points for Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
2295    o mnc: add horizontal grid coordinates (XC,YC) and (XG,YG) to netcdf output
2296      for complex grids, for now only to "state", "adstate", "adexf", "adseaice"
2297    o model: add Christopher Wolfe's implemetation of the single reduction cg2d
2298      (d'Azevedo, Eijkhout, and Romine, 1999) with CPP-flag ALLOW_SRCG and
2299      runtime flag useSRCGSolver. Modify verification experiment global_with_exf
2300      to test this code
2301    o pkg/cd_code:
2302      Change defaut D-grid time-stepping to get the same for D-grid momentum as for
2303       C-grid momentum. D-grid velocity used to be stepped forward in time with
2304       Adams-Bashforth only on surface pressure term. Tests show that using AB on
2305       D-grid coriolis term improves stability (as expected from CD-scheme paper).
2306      To reproduce old results, add 2 options (in CD_CODE_OPTIONS.h).
2307      Update results of exp: global_with_exf (x2), ideal_2D_oce, isomip (x2),
2308       lab_sea (3 Fwd +3 AD), natl_box (x2), tutorial_global_oce_biogeo (Fwd+AD),
2309       tutorial_global_oce_latlon, tutorial_global_oce_optim & tutorial_tracer_adjsens.
2310      Keep old results by adding CD_CODE_OPTIONS.h in exp: cfc_example, exp2,
2311           global_ocean.90x40x15(+AD), global_ocean_ebm(+AD) and OpenAD.
2312    o pkg/obcs:
2313     - fix bug in initialisation (broken since Oct 1rst modification)
2314       for useOBCSprescribe without useEXF.
2315    
2316    checkpoint61y (2009/11/15)
2317    o pkg/seaice
2318     - change (once again) the discretization for the evp solver: rather than
2319       squaring the averages of strain rates, average the squares to give
2320       a better approximation to VP behavior (in simple test); this breaks
2321       verification experiments that use EVP (lab_sea and lab_sea.hb87)
2322        --> update outputs
2323    o add CPP-flag (in mom_calc_visc.F) and TAF directive (in gmredi_slope_limit)
2324      to improve vectorization of adjoint code on TARGET_NEC_SX
2325    o verification/vermix:
2326      - change vermix to a more "classical" 1d column with high vertical
2327        resolution, seasonal heat flux forcing and constant wind forcing
2328        --> update outputs
2329    o pkg/seaice
2330     - fix diagnostics of principal stress components for EVP
2331     - add optional diagnostics of non-linear convergence for LSOR solver
2332     - make maximum zeta a runtime parameter
2333    o model/src (3-d solver):
2334      Undo modif from Dec 12, 2005 (solve_for_pressure.F cvs version v.49),
2335       which consisted in removing the Surf. Non-Hydrostatic pressure from the
2336       whole column and adding it to Eta (inspired from Casualli, 1999):
2337       Only affects 3-D solver initial guess and only if using ExactConserv,
2338       but tests did show a degradation of solver convergence. For this reason,
2339       decide to disable this piece of code.
2340       to recover previous version, just set zeroPsNH = exactConserv (line 78).
2341      Update output of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW
2342    o pkg/ggl90:
2343     - fix previous modif (unfortunatly has not been documented here).
2344    o pkg/seaice/autodiff:
2345     - add CPP flag to include clipping of zeta in EVP code;
2346       although clipping of zeta is not necessary for EVP and not recommended
2347       it was done by default, now clipping is disabled by default
2348     - modify computation and store zetaC/Z in seaice_evp for TAF
2349     - add CPP-flag SEAICE_ALLOW_CLIPVELS (undefined by default)
2350     - change seaice_calc_viscosities/strainrates for better
2351       vectorization after AD by TAF
2352     - rearrange common blocks in SEAICE.h once again for easier dumps of
2353       adjoint output, adjust adcommon.h and g_common.h
2354     - change flux form of default advection scheme for better vectorization
2355       of adjoint code
2356     - modify lab_sea/input.lsr to test the flux form of default advection
2357       scheme
2358    o autodiff: fix seaice fields in g_common.h (left over from 3 to 1 level
2359      transition in checkpoint61r)
2360    
2361    checkpoint61x (2009/10/19)
2362    o adjoint: adding two new verification experiments
2363      * tutorial_global_biogeo: an online dic sensitivity experiment
2364        (work with G. Forget)
2365      * tutorial_dic_adjoffline: an offline dic sensitivity experiment
2366        (an update of the Dutkiewicz et al., 2006 paper)
2367      Both use the same CO2FLUX cost function, but different controls
2368      Gradient checks look good, but some recomp. could still be traightened out
2369      Should add xx_dic control variable to test at some point
2370    o model/src:
2371      add run-time parameters to check and/or mask initial Temp & Salt
2372    o pkg/ptracers:
2373      apply zonal filter (if used) to all passive tracers
2374    
2375    checkpoint61w (2009/10/12)
2376    o adjoint:
2377      * update and finish work on adjoint of dic package (G. Forget)
2378      * start adjoint of offline package
2379      * bug fix for cube-sphere TLM code (active_file_g.F)
2380    o tutorial_global_oce_optim:
2381      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
2382      and add SIZE.h_mpi for MPI testing
2383    o pkg autodiff
2384     - fix bug in autodiff_restore
2385     - make genmake2 remove comments and empty lines from ad_input_code.f in
2386       order to reduce file size (new script file remove_comments_sed)
2387    o allows to specify vertical profile of vertical viscosity (viscArNr)
2388    o pkg autodiff
2389      autodiff_ini_model_io: comment out writing of grid information to netcdf
2390      files, because at this time the grid fields are a bunch of zeros
2391      (this is analogous to ini_mnc_vars.F)
2392    o pkg seaice/autodiff:
2393     left-over from removing the 3-time-level fields:
2394     - small rearrangement of common blocks (SEAICE.h)
2395     - fix field declaration in order to get meaningful output in
2396       adseaice.*.nc (adcommon.h)
2397    o pkg obcs:
2398     - go through NH code only if nonHydrostatic=T
2399     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
2400     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
2401       => Update output of experiment seaice_obcs
2402     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
2403     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
2404     - fix restart for useOBCSprescribe + useEXF
2405    o pkg ctrl
2406     - make obcs as control parameter work also with useSingleCPUio
2407     - replace a few sny and snx by Ny and Nx to be consistent with
2408       ctrl_set_globfld_x/yz.F
2409    o pkg seaice
2410     - re-introduce global field frWtrAtm for the case of
2411       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
2412     - catch the case of an empty filename in seaice_cost_init_fixed.F
2413    o pkg ecco:
2414     - small bug fixes in the_main_loop
2415      . fix order of monitor arguments
2416      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
2417      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
2418        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
2419     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
2420       imbalance diagnostics for wmean_h/sflux = 0
2421     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
2422     - catch the case of empty filenames in ecco_cost_init_fixed.F
2423       and ecco_readparms.F
2424     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
2425       to make this statement meaningfull in ecco_cost_weights.F
2426    o pkg zonal_filt:
2427      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
2428      - when using rStar, filter uVel*hFacW instead of uVel
2429       (tested without topography: fix a Pb of growing instability with NLFS)
2430    o pkg/aim/thsice:
2431     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
2432      (works as SST restoring)
2433    o pkg/thsice:
2434     -add specific parameter for salt restoring in slab mixed-layer
2435       (by default equal to the temperature restoring)
2436    
2437    checkpoint61v (2009/09/21)
2438    o pkg/kpp:
2439     -add double diffusive contributions as a hack, turned off by default
2440      for now, and the code can be excluded with a CPP-flag
2441      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
2442     -add a verification experiments to "vermix" to test this code
2443    o pkg/mom_common:
2444      Move computation of length scales to mom_init_fixed.F (avoid recomputation
2445      at each time-steps*levels).
2446    o pkg/layers:
2447      Created a new package for computing volume fluxes in temperature or
2448      [not yet implemented] density layers, e.g. for calculating residual
2449      overturning circulations.
2450    o pkg/diagnostics:
2451      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
2452    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
2453    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
2454      To avoid mixing type (RS/RL) of input/output array argument,
2455      replace single mixed-type array with a pair from each type (RS/RL).
2456    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
2457      is now implemented for all pkgs (previously only done for the main pickup)
2458    
2459    checkpoint61u (2009/08/25)
2460    o pkg/obcs:
2461      - change OB?eta from _RS to _RL and put them into a separate commen block
2462      - add code to read OB?eta from a file via obcs_prescribe_read: the code
2463        compiles and does not destroy any other experiments, the data is read
2464        properly, but the code is not tested in actual applications
2465    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
2466      create a meaningful unit attribute for the time coordinate variable
2467    o pkg/ebm: add plenty of missing "_d 0" ;
2468       update results of experiment global_ocean_ebm (fwd + adjoint tests)
2469      Notes: several pieces of code only works for (very) specific set up
2470       (domain size, lat range, etc ...); should be documented & stop if one
2471       of those assumptions is not meet.
2472    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
2473       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
2474          and offline_exf_seaice (seaicetd + adjoint).
2475    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
2476       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
2477        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
2478    o few changes to pass when compiling with strick checking of arguments
2479       across S/R (allow to find few bugs in S/R calls).
2480    o pkg/seaice:
2481     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
2482       2d-fields, for slightly better performance
2483    
2484    checkpoint61t (2009/07/22)
2485    o pkg/seaice:
2486     - remove unused variables in seaice_evp
2487     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
2488    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
2489       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
2490       each processor opens a different file (a fix from Matt).
2491    o cg2d:
2492       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
2493       this reduces number of EXCH calls by 2 when using exch2.
2494       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
2495       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
2496    o pkg/thsice:
2497       add code for Near Infra-Red albedo (from Jeff)
2498       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
2499    o ini_model_io:
2500       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
2501       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
2502       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
2503    
2504    checkpoint61s (2009/06/30)
2505    o pkg/exch2 (exch2_rxN_cube*):
2506       remove last BARRIER (no need to synchronise after getting data from shared
2507       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
2508    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
2509      and generate new output (for the 2 tests) using default rotationPeriod.
2510    o pkg/exch2:
2511      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
2512        (was already the case with AUTODIFF_EXCH2 defined)
2513      - add bj in exch2 arrays and S/R.
2514      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
2515        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
2516    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
2517      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
2518        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
2519      - verification experiment natl_box.longstep
2520    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
2521      allow different versions of ifort (8 or 9) and different versions
2522       of mpi (mpich or mpich2) to be used with the same optfile.
2523      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
2524       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
2525    o pkg/seaice:
2526      fix previous modif (3-level field removed) for old-pickup reading
2527    
2528    checkpoint61r (2009/06/25)
2529    o pkg/seaice:
2530     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
2531      1. introduce fields for time step (N-1)
2532      2. do not use levels 2 and 3 anymore (but keep them)
2533      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
2534         includes changes to pkg/thsice/thsice_get_velocity.F,
2535         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
2536         pkg/obcs/obcs_apply_uvice.F.
2537     - completely remove code for leap-frog time stepping for second order
2538       advection
2539     - adjusted adjoint accordingly;
2540       gradient checks have improved by an order of magnitude!
2541    
2542    checkpoint61q (2009/06/22)
2543    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
2544     - the boundary conditions along open boundaries are unclear, because the
2545       associated masks are set to zero and are thus treated as closed when
2546       applying the slip-boundary conditions.
2547     - move initialisation of grid variables from seaice_init_varia to _fixed
2548    o adding doc/diags_changes.txt
2549    o model/src:
2550      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
2551       to avoid "_diags" naming if no relation to pkg/diagnostics.
2552      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
2553       file and only call PLOT_FIELD_XYZ if debugMode=T.
2554      remove few PLOT_FIELD_XY calls outside initialisation.
2555      remove few unnecessary BARRIER.
2556    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
2557      of salt_plume package in Southern Ocean
2558    o pkg/thsice:
2559     - fix hOceMxL in overlap (needed for sea-ice advection);
2560       update output of experiment global_ocean.cs32x15.icedyn.
2561    o pkg/seaice:
2562     - make the (placeholder-)tracer IceAge a little more meaningful
2563      by avoiding ridging of age due to convergent ice flow
2564     - add diagnostics for surface temperature, atmospheric and oceanic
2565       heat flux, and atmospheric and oceanic ice growth
2566    
2567    checkpoint61p (2009/06/10)
2568    o eesupp (global_max & global_sum):
2569     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
2570     - remove starting & endding barrier (no longer needed)
2571    o pkg/mdsio, writelocal:
2572       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
2573       (remove the STOP): uses shared buffer IO to store data from all threads
2574       and then let master-thread write nThreads tiles.
2575    o pkg/mdsio (read/write field):
2576     - tiled IO done in 1 piece (all levels at a time);
2577     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
2578     - multi-threaded: allow to read/write local (non-shared) array
2579       (was already working with singleCpuIO ; now works also without);
2580       => no longer needs barrier call after reading a file (added inside
2581       mds_read/write field).
2582     - move barrier calls outside gather/scatter_2d to mds_read/write_field
2583    o pkg/obcs/exf
2584      - exf_getffieldrec.F: add a few ". _d 0" and
2585                            add code to catch the case fldperiod = 0.  
2586      - obcs_precribe_read.F: change if statements so that they match
2587                              the variable type (_RL)
2588      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
2589        exf_iprec) as part of namelist EXF_NML_01
2590    o pkg/mdsio:
2591      - read/write tiled (local) files: read/write 1-level tile chunk at a time
2592        (instead of segment of length sNx); expected to speed up tiled IO.
2593    o pkg/exch2:
2594      - take buffer copy from/to array out of S/R exch2_send/recv into new
2595        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
2596        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
2597      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
2598      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
2599        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
2600        including Topology header file (and common blocks).
2601      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
2602        remove 2nd exch call in exch2_s3d_rx (no longer needed).
2603      - document S/R arg. list (+ update some comments)
2604    o pkg/seaice:
2605      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
2606        temperature and humidity over sea ice based on climatological values.
2607      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
2608        of LSR (this change is expected to change the results slightly because now
2609        it uses slightly difference moduli from the second last LSR solution, but
2610        that is more consistent with the stress computations; this part of the code
2611        is not tested in the verification experiments)
2612      - fix diagnostics for flux of ice in case of B-grid
2613      - turn strain rates eij and press into global fields within global
2614        common block in SEAICE.h for more straighforward diagnostics
2615      - fix diagnostics for principal stress components, press, zeta, eta
2616        to give something meaning full
2617    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
2618      new output (all 4 tests) using default rotationPeriod.
2619    o pkg KPP:
2620      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
2621      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
2622        and normal grid from 1 to Nr)
2623    o Fix computations of L4rdt in mom_calc_visc.F
2624    o eesupp:
2625      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
2626      should be called before a "stop" if we know that all process are going
2627      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
2628    
2629    checkpoint61o (2009/05/26)
2630    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
2631    o model/src/ini_curvilinear_grid.F:
2632       compute angleSin/CosC when they are not read from a file
2633    o pkg/seaice:
2634       add pseudo time stepping for LSOR
2635    o pkg/exch2:
2636       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
2637    o pkg/seaice:
2638       Adding separate sea ice albedo, drag coefficients, and HO in Southern
2639       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
2640    o SingleCpuIO:
2641       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
2642    o pkg/seaice:
2643       put exchanged variable in (local) common block for MPI+Multi-Threads
2644       to work (necessary with exch1, and for now with exch2 too).
2645    o verification: to get more experiments tested with mpi, mth and mpi+mth,
2646      change tiling of:
2647       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
2648       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
2649      update output of exp:
2650       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
2651       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
2652      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
2653                       (note: output.txt generated on faulks using only 1 tile)
2654    o eesupp & mdsio (SingleCpuIO):
2655     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
2656       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
2657       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
2658     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
2659     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
2660       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
2661    o pkg/exch2:
2662     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
2663       read parameter file "data.exch2" if it exists; otherwise try default regular
2664       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
2665     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
2666       with new code (not to be used, just as a backup solution).
2667     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
2668       in utils/exch2/input.
2669    
2670    checkpoint61n (2009/05/12)
2671    o eesupp & mdsio (SingleCpuIO):
2672      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
2673        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
2674        receive real*4 array (instead of real*8) to read/write 32.bit files.
2675        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
2676         and remove new mapping S/R)
2677    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
2678      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
2679        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
2680        when using exch2. Add S/R to map global io-buffer to global model array.
2681      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
2682    
2683    checkpoint61m (2009/04/29)
2684    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
2685      and add 3 other S/R for other types (R4,R8,RS).
2686      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
2687    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
2688     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
2689     - reduce number of macro definitions (keep only those which are used);
2690       can always call directly the corrresponding S/R if needed.
2691     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
2692       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
2693     Fixed wrong type of arg in:
2694       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
2695       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
2696     To fix: global_sum of var in common block is wrong (multi-threaded) in:
2697       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
2698     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
2699    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
2700      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
2701    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
2702    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
2703      edges are closed (zero depth); might happen with "blank tiles";
2704      for now, disabled if using OBCS.
2705    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
2706      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
2707    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
2708      to reduce length of 1.D array print in STDOUT.
2709    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
2710      + use 48 tiles (16x8): this will allow to test "blank tiles".
2711    o start to test MPI + multi-threaded (change testreport to skip tests
2712      where number of tiles do not match).
2713    o genmake2: add option "-omp" to turn on Open-MP ;
2714      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
2715    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
2716      and keep the original tile numbering. Note: compatible with old
2717      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
2718    
2719    checkpoint61l (2009/04/07)
2720    o Overlaps had been forgotten in calculating ijk keys : fixed
2721    o fix cyrus makedepend for gcc 4.4
2722    o experiment fizhi-cs-aqualev20:
2723      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
2724      and generate new output. Note: new output is much closer to the old
2725      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
2726      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
2727    o pkg/fizhi:
2728     - change to avoid indices going deliberately over array-bounds
2729     - remove unnecessary MPI stuff
2730     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
2731     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
2732       does not go over array-bounds and therefore returns reliable output.
2733     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
2734       this S/R has 4 output arguments, which are used inside "get_alarm";
2735       when it is called with the same variable "ndum" in place of several
2736       output arguments, this produces weird side effect inside "get_alarm"
2737      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
2738       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
2739       address) and produces error.
2740    o tools/gemake2: (March 27-29 2009)
2741      with option "-mpi": link *_mpi files from "MODS" dir (this is what
2742      testreport does).
2743    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
2744    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
2745       update lab_sea.lsr & lab_sea.salt_plume results
2746    o pkg/seaice:
2747      Major overhaul of the LSOR solver: change discretization from original
2748      finite differences to finite volume. The old routine is still in the
2749      file seaice_lsr.F and can be turned on with the CPP-flag
2750      SEAICE_OLD_AND_BAD_DISCRETIZATION
2751      Along with this change, the discretization of the strain rates is changed.
2752      The same flag turns on the old discretization in seaice_calc_strainrates.F
2753      All verification experiments with seaice are affected (except for
2754      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
2755      results by setting the above flag.
2756      Further changes involve changes in defaults:
2757      - ALLOW_FLOODING is defined and turned on by default
2758      - SEAICEadvSnow = .true. is now the default
2759      - SEAICEadvSalt = .true. is now the default
2760      - SEAICEadvAge  = .true. is now the default
2761      - SEAICE_clipVelocities  = .false. is now the default
2762                                         (as per J. Zhang's recommendation)
2763      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
2764        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
2765      - seaice_growth: replace computation of UG by a simple copy from wspeed
2766    
2767    checkpoint61k (2009/03/18)
2768    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
2769      seaice_lsr: fixed a few metric terms,
2770                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
2771                  add more debugging diagnostics
2772      seaice_evp: removed superfluous many metric terms of FV discretization
2773                  of stress divergence
2774                  affects lab_sea, lab_sea.hb87
2775      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
2776                  of stress divergence for non-evp solver
2777                  (this part is not tested anywhere)
2778      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
2779                  they were effectively only half slip
2780                  affects lab_sea.hb87
2781      updated all relevant verification experiments (except lab_sea//output_adm.txt
2782        which was left over, but fails at level 7 & 6)
2783    
2784    checkpoint61j (2009/03/17)
2785    o pkg/seaice: turn a few hard wired parameters into run time parameters
2786    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
2787      time in seconds as promised by the usints in seaice_monitor and exf_monitor
2788    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
2789      that are not cubed-sphere grids
2790    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
2791    o pkg/ctrl:
2792      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
2793    o non-hydrostatic (calc_gw.F):
2794      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
2795      update output of exp. global_ocean.cs32x15.viscA4
2796    o remove backward compatibility for thetaMin,phiMin
2797      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
2798    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
2799      interpolated wind field not only for curvilineargrid=.true., but also
2800      for a rotated grid (rotateGrid=.true.)
2801    o pkg/exf: add capability to bypass interpolation for runoff
2802      by setting yet another CPP-flag
2803    o eesupp/src, B-grid exchange:
2804      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
2805    o autodiff
2806      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
2807      allows to switch to single-prec common blocks;
2808      corresponding switch occurs in tamc.h, integer isbyte
2809      TAF store directivs "byte" and "kind" seem equivalent;
2810      Most tamc.h have been updated correspondingly.
2811    
2812    checkpoint61i (2009/02/13)
2813    o autodiff:
2814      fix autodiff_sore/_restore indices for obcs
2815      (spotted by I. Hoteit, M. Mazloff)
2816    o pkg/autodiff, pkg/ctrl:
2817      Add flag to reduce all tapelev I/O to single-prec.
2818      In data.ctrl set
2819        doSinglePrecTapelev = .TRUE.
2820    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
2821      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
2822    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
2823      real fresh water flux (not yet)
2824    o pkg/mdsio & rw:
2825     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
2826     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
2827    o pkg/flt:
2828     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
2829       init_fixed & ini_varia.
2830     - clean-up & simplify linear interpolation S/R:
2831       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
2832     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
2833     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
2834     - add vert. coordinate & horiz. indices to output files.
2835     - change vertical position in initial condition, from index to depth [m].
2836     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
2837       (easier to get to a curvilinear grid) ; delX,delY no longer used.
2838    o pkg/ggl90: a few modifications:
2839     - fix bottom boundary condition, and interpolation of KappaE
2840       near top and bottom
2841     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
2842     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
2843     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
2844    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
2845      (maintain temporary backward compatibility, until next checkpoint)
2846    
2847    checkpoint61h (2009/01/27)
2848    o pkg/diagnostics with "periodic averaging diagnostics":
2849      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
2850    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
2851    o pkg/obcs: fix loop ranges for balancing code
2852    o pkg/flt:
2853     - improve criteria for finding which tile owns a float.
2854     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
2855    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
2856      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
2857      with ocean biogeo)
2858    o pkg/flt:
2859     - do some cleaning and fix the restart ;
2860     - add output.txt in flt_example/results to get this pkg tested.
2861    o genmake2: add an EXTENDED_SRC option and flag.
2862       for now, cannot be turned on on command line (only through genmake_local)
2863    o pkg/mdsio: read/write vector:
2864     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
2865     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
2866       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
2867     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
2868      (drop to 4 digits matching for grad). But this test does not look very
2869      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
2870    
2871    checkpoint61g (2008/12/29)
2872    o pkg/flt:
2873      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
2874       + make OPTIONS file more standard.
2875      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
2876      - fix _BYTESWAPIO CPP-Flag
2877      - standard reading of file-parameter "data.flt"
2878      - fix argument list of S/R FLT_RESTART
2879      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
2880    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
2881    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
2882      a still unfixed compiler/optimization bug
2883    
2884    checkpoint61f (2008/11/21)
2885    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
2886      update results of global_ocean.cs32x15.icedyn test.
2887    o move getcon.F from model/src to pkg/fizhi.
2888    o pkg/exf: add parameter for extrapolation of temp up to the surface
2889       and option to prevent negative evap (in bulk_largeyeager04 only).
2890    o Prather Advection scheme: fix tracer conservation for divergent flow
2891      (e.g., when using NonLin Free-Surface).
2892    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
2893    o gmredi (Visbeck-variable-K):
2894     - add more parameters to Visbeck-variable-K.
2895     - use a 5 points average for dSigmaR in Visbeck-K calculation
2896       (more "homogenous": same stencil and same weights as in dSigmaH)
2897     - update output of ideal_2D_oce experiment.
2898    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
2899      (#undef REAL4_IS_SLOW)
2900     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
2901       coordinate variable
2902     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
2903       (surface forcing fields), removes some of the functionality
2904     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
2905     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
2906       probably not all: copy _RS surface flux fields to RL field before
2907       calling DIAGNOSTICS_FILL
2908     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
2909       real*4 (CALL EXCH_*_RS) versions.
2910     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
2911       (generate new output).
2912    
2913    checkpoint61e (2008/10/23)
2914    o gmredi (Visbeck-variable-K):
2915      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
2916      - change computation of Visbeck-K where Slope > Smax :        
2917        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
2918        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
2919    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
2920      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
2921    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
2922    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
2923      does not become too large (to avoid precision problems in implicit-diffusion
2924      solver); update ideal_2D_oce output.
2925    o pkg ggl90:
2926      - in ggl90_cal.F: compute only one set of visc/diff, used to
2927        step forward TKE/T/S/momentum
2928      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
2929        have Prandlt =1)
2930    o gmredi (fm07):
2931      - add lower limit on Transition layer thickness + lower limit on 1/lambda
2932      - allow to set few more params from data.gmredi
2933    o pkg ggl90:
2934          - add missing sqrt(2) factor in computation of mixing length
2935            scale in ggl90_calc.F
2936            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
2937    
2938    checkpoint61d (2008/09/25)
2939    o adjoint modifs
2940      - adapt to new field rhoInSitu
2941      - allow to revert from StoreDynVars2D, StoreDynVars3D
2942        to individual fields
2943        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
2944    o store 3-D (in-situ) density in commom block (DYNVARS.h)
2945     - save 1 rho computation.
2946     - no longer modify T & S inland when using down_slope pkg.
2947    o gad_som : allow to switch to SOM advection for T & S without corresponding
2948      pickup files (using new S/R: MDS_CHECK4FILE).
2949    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
2950      (for useSingleCpuIO to work in multi-threaded)
2951    o pkg/shelfice:
2952     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
2953       with SHELFICEtopoFile in data.shelfice
2954     - move code for reading ice shelf topography and modifying hFacC into separate
2955       subroutines of the shelfice package
2956     - separate initialisation of "fixed" and "variable" variables
2957     - kTopC is not (yet) replaced by kSurfC, although this is possible
2958    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
2959    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
2960      and rename:
2961      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
2962      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
2963    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
2964    
2965    checkpoint61c (2008/08/30)
2966    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
2967      to add mass source/sink of fluid in the interior (3-D generalisation
2968      of oceanic real-fresh water flux).
2969    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
2970    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
2971    o new pkg: down_slope
2972      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
2973      - presently, modify T & S inland (dwnslp_calc_rho.F).
2974        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
2975      - implementation for ocean in P-coords not tested.
2976      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
2977    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
2978      (to facilitate conversion of oceanic pkg to p-coordinate).
2979    o change FIND_RHO to FIND_RHO_2D :
2980      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
2981    o new pkg: cheapaml
2982    
2983    checkpoint61b (2008/08/05)
2984    o exch2:
2985      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
2986      - no longer depend on the order sequence (N,S,E,W).
2987      - 3rd exchange no longer needed (tested with 24 tiles).
2988      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
2989      - exch_UV_A-grid readily available (but not yet tested).
2990      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
2991      (both are no longer needed) in exch_uv: no effect in forward run; but
2992       get truncation error differences with adjoint exch.
2993    o exch2:
2994     - change index-bounds storage (moved from target to local tile,
2995       more intuitive this way) ; rename/remove some variables.
2996     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
2997    
2998    checkpoint61a (2008/07/29)
2999    o exch2/matlab-topology-generator:
3000      fix bug in index bounds for N-S internal exchange (hard to tell if this
3001      had any effect on the solution).
3002    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
3003      is exceeded
3004    o testreport: modify syntax of awk, so that it works also with
3005      awk, and not only with nawk and gawk
3006    
3007    checkpoint61 (2008/06/24)
3008    o autodiff
3009      Change default for TAF usage by removing argument '-nonew_arg'
3010      This changes TAF subroutine argument list (ordering of active var.)
3011      Omission of this flag leads to incompatibility w.r.t. TAMC
3012      To restore TAMC-compatibility, need following modifs:
3013      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
3014      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
3015      Tested TAF version is 1.9.22
3016      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
3017    
3018    checkpoint60 (2008/06/19)
3019    --->>> This is the last checkpoint for which generating the adjoint
3020    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
3021    --->>> by default.
3022    --->>> Future checkpoints will ommit this flag by default.
3023    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
3024    o pkg/grdchk: Add gradient check to etan0 perturbations.
3025    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
3026    o pkg/autodiff: more flexibility in zeroadj.
3027      model/src: modifying do_oceanic_phys.F accordingly.
3028    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
3029    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
3030      special setup of gmredi for which the adjoint is stable
3031      enough for parameter optimization.
3032    o bridging the gap between eddy stress and GM.
3033      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
3034          along with a change in CPP option (now ALLOW_EDDYPSI).
3035      -> when using GM w/ GM_AdvForm:
3036          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
3037          is applied either in the tracer Eq. or in momentum Eq.
3038          depending on data.gmredi (intro. GM_InMomAsStress).
3039      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
3040      The key modifications are in model/src/taueddy_external_forcing.F
3041      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
3042    
3043    checkpoint59r (2008/05/29)
3044    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
3045      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
3046      fix option to read coriolis(@ cell-corner) from files with CS-grid.
3047    o pkg/mnc: add some attributes to standard 1D-coordinate variables
3048    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
3049      mass points, when using mnc for output
3050      - add runtime parameter (missing_value, missing_value_int) to override
3051        default (which is the value of getcon('UNDEF'))
3052    o pkg/mnc: prepare mnc for the actual use of missing values with the
3053      diagnostics package: small fix in mnc_cw_readwrite.template and more
3054      initialisation of never used fields
3055      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
3056      versions
3057    o pkg/thsice/thsice_ini_vars.F added default initial values so that
3058      thermodynamics sea ice solver does not blow up when some initial fields
3059      are missing.
3060    o move from external_forcing_surf.F to ini_forcing.F
3061      the p-coord. hack consisting in using pLoad to set phi0surf ;
3062      update output of tutorial_global_oce_in_p (affected @ truncation level).
3063    o Freshen up a bit hs94.1x64x5, notably:
3064      remove rotationPeriod and tRef=5*0. (adjoint only), and add
3065      exactConserv=.TRUE.
3066    o pkg/generic_advdiff:
3067      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
3068      applies to files where Temperature & Salinity 2nd Order moments are used.
3069    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
3070      this uses a dynamically allocated internal state data structure
3071      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
3072      and requires a fortran 90 compiler
3073    
3074    checkpoint59q (2008/05/06)
3075    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
3076       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
3077    o Refresh tutorial_global_oce_biogeo, notably:
3078      - change bathymetry (put back seamounts in ACC, use hFacs)
3079      - change EOS (POLY3 --> JMD95Z)
3080      - use Bryan-Lewis vertical diffusivity
3081      - use multidimensional advection
3082      - remove old virtual virtual in dic pkg, now done through ptracer pkg
3083      - change a couple of parameters in dic pkg
3084    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
3085    o pkg/obcs: change default to OBCSfixTopo = .true.,
3086      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
3087      - replace "debugMode" with "debugLevel .GE. debLevB"
3088    o implementation of TAF directives for gchem,cfc,dic
3089    o remove "exp5" (replaced by tutorial_deep_convection).
3090    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
3091      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
3092      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
3093      --> changes results in exp4, seaice_obcs
3094    o tutorial_deep_convection :
3095      update the set-up and increase resolution and domain size ; start
3096      from pseudo initial conditions = output at t=120mn in order to see
3097      something happening when running testreport.
3098    o pkg/seaice: add os7mp as an advection scheme
3099                  add check for advection schemes
3100                  add a flag for restoring T and S underneath sea ice
3101    o pkg/my82: add netcdf-support and diagnostics
3102    o thsice pkg:
3103      - Now hsMax limits snow height by turning it into ice following
3104        flooding scheme (and now conserving energy)
3105      - Slight rewriting of the formula in thsice_calc_thick.F
3106      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
3107      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
3108    
3109    checkpoint59p (2008/04/10)
3110    o gchem / dic / cfc :
3111      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
3112      - add new parameter files: "data.dic" & "data.cfc" ;
3113      - various re-arrangement in initialisation & header file ;
3114      - fix tutorial_global_oce_biogeo for multi-threaded test.
3115    o pkg/dic: test for "pickup_dic" file when restarting ;
3116      if no pickup-file, can restart with a re-initialised pH (same as it did
3117      before) providing pickupStrictlyMatch is set to False.
3118    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
3119      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
3120    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
3121      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
3122    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
3123     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
3124       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
3125    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
3126       scheme to use for vorticty-term ;
3127     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
3128       (with default selectVortScheme, return to original discretisation)
3129     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
3130    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
3131    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
3132      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
3133      also fix diagnostics VISCAHW & VISCA4W.
3134    
3135    checkpoint59o (2008/03/07)
3136    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
3137    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
3138      move a few statemens out the main loop into separate loops
3139    o pkg/shelfice:
3140      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
3141        (kg/m^2/s), does not break tests, because in verification/isomip,
3142        rhoConstFresh=rhoConst (by accident)
3143      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
3144      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
3145        new file model/src/seawater.F, so that they are available for all pkgs.
3146      - convert potential temperature into in-situ temperature. This changes the
3147        isomip tests => update tests
3148    o add a flag writePickupAtEnd (default=true) to be able to suppress
3149      writing a pickup at the last timestep
3150    o tools/mpack-1.6 :
3151      - disable automake (not working) and autoconf (not needed).
3152      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
3153        also cleaner with much less compilation warnings.
3154    o pkg/profiles:
3155      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
3156      (for "less than 32 characters name" compiler requirement)
3157    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
3158      conditions that have a different sampling frequency than S/T/U/V obcs
3159    o pkg/diagnostics (stats-diags):
3160      - fix global Min/Max in case 1 processor get only empty tiles
3161    o genmake2: replace (4 times)
3162         make genmake_tc_1.o >> genmake_warnings 2>&1
3163      with
3164         COMM="$CC $CFLAGS -c genmake_tc_1.c"
3165         echo $COMM >> genmake_warnings
3166         $COMM >> genmake_warnings 2>&1
3167      to make genmake2 always see the value of CC as specified in the optfile.
3168    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
3169      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
3170      - modify verification advect_cs test to test SOM-advection on CS-grid.
3171    o pkg/ctrl:
3172      - Rewrite of ctrl_map_ini_ecco.F,
3173        introducing a generic routine (ctrl_map_ini_gen.F).
3174      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
3175    
3176    checkpoint59n (2008/02/09)
3177    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
3178      number in dedicate array "hdiag":
3179      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
3180        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
3181      - many small changes (integer format) for large number of diagnostics
3182      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
3183        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
3184    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
3185      usingSphericalGrid, this allows to define the rotated grid coordinates
3186      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
3187      geographical coordinates according to the inverse of the rotation defined
3188      by the Euler angles, so that Coriolis parameter and online-interpolation by
3189      exf works with the geographical coordinates on XC/YC/XG/YG.
3190      Naturally, this feature does not work with all packages, so some
3191      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
3192      profiles), because there the coordinates are assumed to be regular
3193      spherical grid coordinates.
3194    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
3195      - introduce isopycnal diffusion coefficient control.
3196    o tools/adjoint_options:
3197      - additional control vector components.
3198    o pkg/mnc: have mnc create marginally meaning full coordinate variables
3199      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
3200    o pkg/mypackage:
3201      - add example of read/write pickup for state-var ;
3202      - add entry points to the main code for state-vars diags & write-pickup.
3203    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
3204      transitions for useExfYearlyFields
3205      - add new subroutine that determines the file to read from for
3206        use*YearlyFields = .TRUE. and .FALSE.
3207      - add a verification experiment to global_with_exf that tests
3208        useExfYearlyFields with USE_EXF_INTERPOLATION defined
3209    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
3210      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
3211      subroutines (which could be generated from a template, because they are
3212      almost identical), for now they are included in obcs_prescribe_read.F for
3213      simplicity
3214    o pkg/exf:
3215      - add a little more diagnostic to exf_interp_read (in analogy to
3216        mds_read_field, can be turned off with debugLevel < debugLevA=1)
3217      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
3218        ugly but fast by unrolling short inner loops, inserting a unroll=8
3219        directive in routine lagran, and splitting a loop and making do while the
3220        outermost loop (the latter requires the intoduction of index arrays)
3221    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
3222    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
3223      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
3224    o verification/seaice_obcs: updated for restart test and latest options
3225    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
3226      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
3227      for now this is only available for the C-grid code and also within
3228      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
3229    
3230    checkpoint59m (2008/01/14)
3231    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
3232      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
3233    o gad_som : fix flux output (& diagnostics) to have same units as other  
3234      advection scheme fluxes (was previously multiplied by deltaT).  
3235    o added verification/seaice_obcs both to test seaice open boundaries
3236      and to provide an example matlab scrpt for generating them
3237    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
3238    o pkg/salt_plume: clean up salt_plume_frac.F to
3239      remove redundancy in PlumeMethod 1 and 4
3240    o pkg/kpp: added saltplume diagnostics
3241    o pkg/obcs and pkg/seaice:
3242      - do not set uice and vice to zero when OB*icefile are unspecified
3243      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
3244      - moved seaice tracer obcs after call to seaice_growth
3245    o pkg/salt_plume: added various options for salt plume depth
3246      criterion and for vertical distribution of the salt
3247    
3248    checkpoint59l (2007/12/18)
3249    o pkg/ptracers: new version of ptracers pickup:
3250      read meta file and write only fields which are needed to restart.
3251      ( same logic as main pickup file ; also using pickupStrictlyMatch )
3252    o pkg/seaice:
3253      - add timescale for melting due to warm mixed layer as a means of
3254        setting SEAICE_availHeatFrac more conveniently
3255      - add a CPP-flag/runtime parameter check for flooding algorithm
3256      - reformulated availHeat in seaice_growth.F to be independent of AREA
3257    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
3258      unit changes
3259    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
3260    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
3261      SX vector computer.
3262    o pkg/seaice:
3263      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
3264        seaice forcing fields can now be read only through pkg/exf
3265      - removed some unused halos
3266    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
3267    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
3268      or U/VICE from U/VWIND before computing U/VSTRESS
3269    
3270    checkpoint59k (2007/11/30)
3271    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
3272      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
3273    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
3274      all experiments pass when compile with un-initialised var. checking option.
3275    o added pkg/salt_plume
3276    o script to test restart (for now, in MITgcm_contrib/jmc_script)
3277    o pkg/seaice: new read/write pickup version.
3278      read meta file and write only fields which are needed to restart.
3279      ( same logic as main pickup file ; also using pickupStrictlyMatch )
3280    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
3281    o lab_sea.hb87: modify the domain & update output.hb87.txt :
3282      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
3283      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
3284      process. Fixed here by closing the domain at the Northern boundary.
3285    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
3286    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
3287      a set of consecutive levels in/from a 3-D array.
3288    o pkg/ptracers:
3289      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
3290      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
3291    
3292    checkpoint59j (2007/11/09)
3293    o in pkgs: dic, obcs, offline, rbcs:
3294      standard way to compute coeff. for time interpolation between 2 time reccords
3295      which retains full precision (& make results less dependent on compiler).
3296      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
3297    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
3298      packages instead of reading ice cover and wind speed separately
3299    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
3300     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
3301      to allow to compile customized code before the update)
3302    o cleaning-up:
3303      - fix CPP instruction syntax in pkg/obcs
3304      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
3305        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
3306      - fix some threads issue in IO parts.
3307    o pkg/dic:
3308      - add tons of "_d 0" (--> much better testreports !)
3309       and then update outputs of tutorial_global_oce_biogeo
3310    o pkg/mom_fluxform:
3311      add a special version of momentum advection intended to conserve momentum
3312      next to a bathymetry step or a coastline edge. (default = off = #undef)
3313    o new read/write pickup version:
3314      - for now, only implemented for main (mdsio) pickup file.
3315      - write out only what is needed to restart; merge pickup_nh , pickup_ph
3316        and main pickup together.
3317      - read meta file; read only what is needed to restart; stop if a field
3318        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
3319        if it make sense (even if the restart is not perfect).
3320      - if no meta file, assume that pickup to read corresponds exactly to
3321        a pickup that would currently be written.
3322      - read pickup written in the old format (until checkpoint59i) if it
3323        recognizes an old meta file (no field-list).
3324      - add a meta file in exp. which starts from a pickup: 2 cases:
3325        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
3326         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
3327        b) a meta file describing the content of the associated pickup file
3328         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
3329    o pkg/mdsio & pkg/rw:
3330      - new routine to read a meta file ; new set of routine to read
3331        Multiple-fields file (with meta file).
3332    o added open boundary conditions capability for seaice
3333        HSNOW, HSALT, UICE, and VICE
3334    
3335    checkpoint59i (2007/10/21)
3336    o adjoint:
3337      * fix multiDimAdvection adjoint
3338        (partial recomputation problem by TAF for fVerT(:,:,kDown)
3339        and comlev1 size definition (maxpass vs. max. number of tracers)
3340      * verification/global_ocean.90x45x15 adjoint now tests
3341        NLFS and multiDimAdvection using DST3 (=30)
3342      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
3343    o pkg/kpp: add "_d 0" to real constant (if missing);
3344      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
3345      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
3346    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
3347      for internal parameters related to restart process (formerly from PARAMS.h)
3348      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
3349    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
3350      as argument. (only atm2d & obcs write_pickup have not yet been updated)
3351    o pkg/monitor:
3352      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
3353      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
3354      - account for deep Atmosphere factor and density factor (anelastic)
3355    o added open boundary conditions capability for seaice HEFF and AREA
3356    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
3357      thermodynamics
3358      - requires a little reorganization, which affects the testreport results
3359        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
3360        so that now the conservative form is tested
3361      - add a few comments
3362    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
3363    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
3364    o add new diagnostics to seaice: advective, diffusive fluxes (only for
3365      multidim-advection, for scheme 2 they are not filled) and transports,
3366      thermodynamic growth rates
3367    o change units of EmPmR (inside the code, + within coupling interface)
3368      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
3369      Affects results @ truncation level (cg2d match) and update output of
3370       experiments: lab_sea(6), global_ocean.90x40x15(10),
3371      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
3372      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
3373      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
3374      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
3375    
3376    checkpoint59h (2007/09/29)
3377    o pkg/exf:
3378      - improve vectorization by moving if-statement out of loops in
3379        exf_mapfields, exf_radiation
3380      - exf_bulkformulae.F: introduce 2D fields and vectorize code
3381    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
3382    o testreport:
3383      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
3384        monitor & update offline_exf_seaice exp. output.
3385      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
3386    o pkg/seaice:
3387      - bug fix in the evp solver: boundary conditions were affected be
3388        masking of zMax/zMin (changes results)
3389      - minor bug fix in boundary conditions in seaice_calc_strainrates
3390        (changes results for no_slip)
3391      - seaice_lsr.F: make interpolation of eta dependent on boundaries
3392      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
3393      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
3394        stress formulation and no-slip boundary conditions
3395    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
3396      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
3397    o pkg/seaice: a first HSALT time stepping equation has been checked in
3398    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
3399      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
3400      without requiring DO-IF statements
3401    o pkg/thsice:
3402      use continuous power-law function for partition of energy between lateral
3403      melting/freezing and thinning/thickening ; old code using step function
3404      still available with #undef THSICE_FRACEN_POWERLAW
3405      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
3406    o testreport: change AD testing : check against results/output_adm.txt
3407      using same scripts as for forward test.
3408    
3409    checkpoint59g (2007/09/17)
3410    o adjoint testing: in preparation for changing testreport:
3411      - output format: cost and grad written on separated lines
3412      - ad output results in directory "results" (instead of "results_ad")
3413    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
3414    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
3415    o pkg/ecco: allow user defined cost function contributions
3416    o testreport:
3417      Allow to choose (per experiment) the list of tested output variables
3418       and the main variable (used to issue a pass/FAIL ) ;
3419      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
3420      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
3421      Also modify printing of summary:
3422       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
3423       b) echo the list of tested variables in the individual summary.txt of
3424          each experiment.
3425    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
3426      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
3427      (but still depend on the tile decompostion of the domain).
3428    o pkg/seaice: change a discretization detail to make the B-grid code
3429      "more symmetric". This change is likely to remove all "ridges/leads" that
3430      where quasi-aligned with the grid in B-grid solutions. It may also be
3431      the solution to the stress coupling issues with the B-grid.
3432    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
3433      remove .cvsignore from input dir. (since testreport no longer run here).
3434    o pkg/thsice:
3435     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
3436     - fix reshaping of sea-ice just after advection:
3437       melt all the ice only if ice-volume is too small.
3438     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
3439       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
3440     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
3441    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
3442      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
3443    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
3444      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
3445      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
3446      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
3447      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
3448      -> update output.txt
3449    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
3450     this affects truncation error: -> update output.txt of exp:
3451      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
3452      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
3453    
3454    checkpoint59f (2007/08/21)
3455    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
3456    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
3457      a bounded range (in forward mode)
3458    o pkg/ecco, ctrl, autodiff and mom_common:
3459     internal parameter controls, completements of implementations
3460    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
3461    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
3462      (not seem any difference in testing results).
3463    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
3464       at face corners.
3465    o pkg/generic_advdiff:
3466     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
3467      loop range indices for computing vertical advection tendency
3468      and do the calculation in the interior only (no overlap) ;
3469      for now, only implemented for SOM advection (to save CPU time).
3470     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
3471    o exch2 adjoint
3472      First set of changes:
3473      - add exch2 hand-written adjoint templates
3474      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
3475        This will require cleanup in pkg/autodiff/*.F
3476        (changed routines currently kept separate in verif. code/)
3477      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
3478        that used to hide exch2 or cubed-sphere specific code
3479        (commented via 'cph-exch2')
3480    o pkg/seaice
3481      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
3482    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
3483       output of global_ocean.cs32x15.thsice .
3484    
3485    checkpoint59e (2007/07/26)
3486    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
3487      for B-grid vector (not yet tested) and C-grid vector (<- only used
3488      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
3489    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
3490      (#ifdef ALLOW_SALT_PLUME)
3491    o gather_2d/scatter_2d: removed halo regions
3492    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
3493      scheme and the corresponding test case (under front_relax dir). For now,
3494      only available with Skew-flux form and not yet tested in realistic set-up.
3495      adjoint: store directives updated, but gradient checks deteriorated,
3496      so maybe GM/Redi adjoint is now broken.
3497    o seaice adjoint
3498      * add AREA, HEFF, HSNOW as control variable
3499        (should not change lab_sea results)
3500      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
3501    o pkg/seaice:
3502      * added computation of saltFlux in seaice_growth;
3503        For time being, sea ice salinity is assumed constant
3504        contribution of snow flooding to freshening of sea ice is neglected.
3505        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
3506        defaults to 0.0 in order to maintain backward compatibility.
3507        Typical values for SEAICE_salinity are 4 to 10 g/kg.
3508      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
3509      * added SEAICE_availHeatFrac, which specifies fraction of surface level
3510        heat content used to melt or grow ice
3511      * commented out cap of HICE: it helps keep ice thinner
3512      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
3513      * applied OBCS T/S mask to HEFFM sea ice mask
3514    
3515    checkpoint59d (2007/06/21)
3516    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
3517     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
3518     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
3519    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
3520     and change default value of parameter "GM_Small_Number";
3521     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
3522       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
3523       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
3524    o pkg/ecco: cost function when applying pkg/smooth to controls
3525    o pkg/ctrl: add forcingPrecond run time parameter
3526    o pkg/seaice:
3527     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
3528     - fix bug in metric terms of u-equation in LSR solver (implicit part),
3529       changes verification/lab_sea
3530     - rearrange implicit part of u-equation in LSR solver to make it easier to
3531       read, understand, and debug. This causes changes at the truncation level.
3532     - fix (serious) bug in the boundary conditions (sign error in the implicit
3533       part) of the LSR solver. Changes all LSR results.
3534     - fixed problem with HSNOW initialization to avoid thick snow when AREA
3535       is initilized with small values - does not change lab_sea results.
3536     - added HsnowFile initialization capability
3537    o pkg/smooth: addition to model/src and pkg/ctrl so allow
3538     initialization of pkg/smooth and application to control vector
3539    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
3540    o dependencies: pkg/profiles requires pkg/cal
3541    o pkg/profiles:
3542     - added option ALLOW_PROFILES_GENERICGRID
3543         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
3544         that interpolation information (grid points and coefficients) is provided
3545         within the netcdf input files.
3546         -> sample matlab scripts can be found in MITgcm_contrib/gael
3547         that allow you to prepare netcdf input files.
3548     - also modified: cleaner include statements, cleaner error print statements,
3549       cleaner stops when error, and more tests of the netcdf input files consistency.
3550    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
3551    o pkg/seaice:
3552     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
3553       requires a new routine: seaice_diagnostics_fill.F
3554     - make sure that seaice does not move if not forced (pressure replacement
3555       method, Hibler and Ip, 1995), changes results
3556     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
3557     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
3558       It is turned off by default (=-1.), because it changes the results.
3559     - make it possible to read AREA from a file, too.
3560    
3561    checkpoint59c (2007/06/04)
3562    o add S/R and diagnostics for oceanic mixed-layer depth
3563    o move GMRedi call after all vertical mixing schemes (including KPP)
3564    o pkg/thsice:
3565     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
3566      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
3567    o pkg/obcs:
3568     - bug fix for balance code
3569    o pkg/seaice:
3570      - allow values of SEAICE_elasticParm > 1
3571      - add new parameter SEAICE_evpTauRelax as an alternative
3572        to SEAICE_elasticParm
3573      - make lsr boundary conditions free slip (by default), changes result
3574      - add code for no slip boundary conditions for lsr
3575      - set minimum of zeta to zero (and not 4e8) (changes results)
3576      - add a cap on AREA after advecting AREA if seaice_growth is not called
3577    o change calculation of Visbeck K:
3578      - no longer depend on tapering scheme; instead, compute slope (limited
3579        by GM_maxSlope). this is equivalent to what was comuted before with
3580        clipping or linear tappering.
3581      - fix vertical averaging (wrong by 1/2 level)
3582      - leave the old version (but will not be maintained) within
3583        #ifdef OLD_VISBECK_CALC / #endif
3584      - update output of exp. ideal_2D_oce
3585    o change error catch in calc_r_star to improve vectorization
3586    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
3587      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
3588    o adjoint:
3589      Re-organized adjoint checkpointing according to Matt Mazloff
3590      (but with modifs/completions/cleanups)
3591      Storing is now bundled into large arrays to optimized I/O
3592      (and second step in cleanup of the_main_loop)
3593    
3594    checkpoint59b (2007/05/16)
3595    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
3596      - export/import (between ocean & coupler) fields needed for ocean DIC.
3597    o pkg/seaice:
3598      - get rid of three more exchanges seaice_calc_viscosities (required
3599        different loop boundaries in seaice_lsr and seaice_ocean_stress)
3600      - bug fix in seaice_ocean_stress (update of lab_sea required)
3601      - reduce loop boundaries to necessary minimum also in seaice_evp
3602      - go back to the old way of computing deltaC/Z as the adjoint likes that
3603        better
3604    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
3605      passive tracer to an Age Tracer) + update output.txt
3606    o pkg/exf:
3607      - implement A-grid / C-grid selection for wind-stress input files.
3608      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
3609      for now, in exf_bulk_largeyeager04.F only :
3610      - change implementation for case where windspeed + 2. components wind-stress
3611        are read-in. AND use rhoConstFresh to convert evap.
3612    o pkg/seaice:
3613      - use correct EXCH_UV for wind-forcing (on A-grid).
3614      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
3615        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
3616    o pkg/exf:
3617      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
3618      EXF_INTERPOLATION:
3619      - merge global_with_exf/code version of exf_interp_read.F
3620        to the main code ;
3621      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
3622        reading the file ; Important: This options needs to be defined to recover
3623        previous code.
3624        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
3625      - no longer loose real*8 precision along the way when using exf_iprec=64.
3626    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
3627      - change discretisation of evp-solver in order to avoid another exchange
3628        (changes lab_sea) and clean up a little
3629      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
3630        help the adjoint (this also changes the results slightly)
3631      - add a few "_d 0" where they had been missing in seaice_evp.F
3632      - cleaning up: remove unused seaice_calc_rhs.F
3633    o pkg/exf: some cleaning-up:
3634      - change various "constants" into runtime parameters
3635      - cleaned-up Large&Yeager04 routine which should eventually
3636        replace exf_bulkformulae.F (changed names of S/R and CPP)
3637        and merged various ALLOW_ATM_WIND options
3638     only used with thsice pkg (in thsice_get_exf.F):
3639      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
3640        which are used when useStabilityFct_overIce=TRUE (= the default)
3641      - change default values of ice & snow emissivity and scale downward LW
3642        by ice & snow emissivity.
3643    o pkg/thsice:
3644     fix few little problems, in thsice_calc_thickn.F:
3645      - growth vertically (and not laterally) if iceFrac == iceMaskMax
3646      - melt only laterally if hIce < hThinIce (as the comments say)
3647      and in thsice_extend.F:
3648      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
3649      - start to form ice as soon as the minimum ice-volume is reachable.
3650     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
3651      and cpl_aim+ocn
3652    o pkg/kpp
3653     - move computation of surface related input fields to KPP into a new
3654       subroutine kpp_forcing_surf.F
3655     - remove wrong (within bi,bj loops) EXCH calls.
3656     - little cleaning (add argument myThid in last position, cvs header ...)
3657     - for now, fix conservation problem by exchanging KPPviscAz (may not
3658       be the best fix)
3659    o pkg/seaice
3660     - check for inconsistent evp parameter/cpp-flag combination
3661     - remove leftover errIO flat for obsolete name list error handling
3662    o OpenAD
3663     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
3664    
3665    checkpoint59a (2007/05/01)
3666    o pkg/seaice: some parameter clarifications and a little bit of clean up
3667    o pkg/thsice: rename run-time parameters:
3668       himin       -> hIceMin
3669       himin0      -> hThinIce
3670       hihig       -> hThickIce
3671       i0          -> i0swFrac
3672       transCoef   -> bMeltCoef
3673       frac_energy -> fracMelting
3674      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
3675       with default values (for now) that do not change the results.
3676      remove old version of thsice vars advection in pkg/seaice.
3677    o in FFIELDS.h:
3678      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
3679      - make pLoad & sIceLoad always available (but still only used if
3680         ATMOSPHERIC_LOADING is #define).
3681    o pkg/kpp: replaced _KPP_RL with _RL
3682    o bug fixes for vertical diffusivity computations when both KPP and
3683        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
3684        are no longer updating the vertical diffusivity array
3685        (passed as argument) but are (re-) setting those arrays.
3686    o pkg/seaice: fix bug in evp solver, while doing that
3687      - change (improve?) discretization of stress computations for both
3688        cgrid-lsr and evp solver
3689      - add a new routine to compute strain rates
3690      - the above changes lab_sea results
3691      - add no slip conditions for evp solver (off by default), lsr-version
3692        may follow
3693      - fix exchange for shear at Z-points (does not change lab_sea)
3694      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
3695        (to force the user to pick a time step since there is not "safe" way
3696        of choosing it)
3697      - add principal stress diagnostics
3698      - rearrange fields for evp a little to avoid having to call a: too many
3699        exchanges and b: exchanges for stress trensor components which we do
3700        not have.
3701      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
3702        of evp, complete rewrite for lsr case (latter is does not yet work
3703        in all cases)
3704    o pkg/kpp: add code to have mixing in shelf ice caverns
3705      - add myThid to all kpp routines (long overdue)
3706    
3707    checkpoint59 (2007/04/19)
3708    o pkg/exf:
3709      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
3710        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
3711      - move exf header files from lower_case.h to UPPER_CASE.h ;
3712        add missing cvs Header & Name
3713      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
3714      - add namelist param. selectStressGridPosition, exf_monFreq
3715      - retire many _CLIM routines, and remove data.exf_clim
3716        + params moved to data.exf
3717        + climsst, climsss now handled by exf_set_gen, i.e.
3718          climss?period=0 refers to constant field,
3719          climss?period=-12 to monthly forcing
3720      - split up namelists in data.exf
3721    o pkg/seaice:
3722      - remove seaice_exch and seaice_exch_uv
3723      - remove superfluous exchange of theta
3724      - add myThid to seaice_budget_ocean/ice
3725      - add new interface for atmospheric wind forcing (C-grid only)
3726        + new routine
3727        + two new field (taux, tauy for stress over ice)
3728        + removed one global field (DAIRN) for C-grid case only
3729    o pkg/thsise
3730      - 2nd set of modifs for thsice adjoint in conjunction with exf
3731    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
3732    
3733    checkpoint58y_post (2007/04/15)
3734    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
3735      vertical diffusivity, similar to that in MOM4; turned on using
3736      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
3737      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
3738    o Added capability for 3D specification of background vertical diffusion
3739      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
3740      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
3741      "data" file that contains the 3D vertical diffusivity coefficients.
3742    o ice dynamics (pkg/seaice) with thsice thermodynamics:
3743      - add code within pkg thsice to advect & diffuse sea-ice fields
3744      similar to (and will replace) what has been added in  seaice_advdiff.F,
3745      but: - conserving Mass, Heat & Salt.
3746           - better when using non-linear advection scheme (not yet fully tested)
3747           - can also be used in atmospheric set-up (for now, only the diffusion).
3748    
3749    checkpoint58x_post (2007/04/04)
3750    o IO option for global-file compact format:
3751      - add options when generating topology (utils/exch2/matlab-topology-generator)
3752      - add I/O capability (pkg/mdsio).
3753      - adapt utils/matlab/rdmds.m to read this format.
3754      for now long-line format not yet supported by pkg/mdsio (& exch2).
3755    o shelfice: add a few diagnostics
3756    
3757    checkpoint58w_post (2007/03/13)
3758    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
3759      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
3760      (and replace horiVertRatio in NH code).
3761      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
3762                         and tutorial_plume_on_slope (sensitive to truncation)
3763    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
3764      directly to drive seaice model (C-grid only)
3765    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
3766     - reintroduce computation of wind from stress,
3767     - compute tau (in exf_bulkformulae.F) from windstress averaged to
3768       mass points to avoid tau = 0
3769     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
3770    o rdmnc.m: make it work with "global" files created with gluemnc
3771    o rdmnc.m : some improvements in dealing with singleton dimension
3772      (tested on all testreport mnc output files).
3773    o genmake2: disable pkg/profiles if netcdf test fails.
3774    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
3775    o move call to cal_readparms up to make calendar parameters/variable available
3776      to all packages
3777    
3778    checkpoint58v_post (2007/02/08)
3779    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
3780      useDynP_inEos_Zc tested.
3781    o pkg/exf: changes to properly interpolate/mask/scale initial fields
3782    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
3783      and portions thereof.  See read_cs.txt for description and examples.
3784    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
3785      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
3786      following the great-circle arc between those 2 points.
3787    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
3788      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
3789    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
3790     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
3791     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
3792     - still needs work (not working with some options ; efficiency to improve)
3793       and serious testing.
3794     - use this scheme for temperature & salinity in 2 advection test exp.:
3795       advect_xy & advect_xz, respectively.
3796    
3797    checkpoint58u_post (2007/01/12)
3798    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
3799    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
3800    o testreport: add option "-skipdir" to skip some test.
3801    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
3802      momentum calculation.
3803    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
3804    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
3805      remove checkpoint.F and the_correction_step.F (no longer used);
3806      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
3807    o add option (linFSConserveTr) to correct for tracer source/sink due to
3808      Linear Free surface
3809    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
3810    o pkg/thsice: fix reading mnc-pickups
3811    
3812    checkpoint58t_post (2006/12/30)
3813    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
3814    o pkg/mdsio:
3815     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
3816       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
3817       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
3818     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
3819     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
3820       either MDS_READ_FIELD or MDS_WRITE_FIELD )
3821     - new S/R (to replace MDSWRITEMETA), which allows to write more
3822       informations (variable names, time ...) to meta files.
3823     - modify rdmds.m to give back the meta file content.
3824    o pkg/diagnostics: change vertical interpolation to be safer, and more
3825       flexible (define p-levels to interpolate to in data.diagnostics);
3826      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
3827       diagnostic pointer.
3828    o pkg/seaice: more cleaning up of seaice_growth, added many comments
3829    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
3830    o fix multi-category seaice:
3831     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
3832       SEAICE_MULTICATEGORY
3833     - fix short wave heat flux
3834    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
3835       and allow to use EVP solver. Change forward lab_sea: test both EVP
3836       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
3837    o Initial check-in of lab_sea adjoint
3838      (very similar to natl_box_adjoint/code_seaice)
3839      * used C-grid and EVP solver
3840      * used KPP, GM/Redi
3841      * uses inAdExact=.TRUE.
3842      * gradient checks fail for both ADM and TLM
3843        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
3844        f.d. gradients actually seem more problematic than ADM, TLM gradients;
3845        issue is related to forward mismatch between g77 an ifort
3846    o pkg/seaice: overhaul of thermodynamics
3847     - growth.F and groatb.F are replaced by new routine seaice_growth.F
3848     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
3849     - move a few global fields out of SEAICE.h into seaice_growth.F and
3850       make them 2D (FICE/QNETO/ ...)
3851     - remove FO (it is the same as QNETO)
3852     - introduce a few local fields to avoid modifying external fields such
3853       as atemp, etc.
3854    
3855    checkpoint58s_post (2006/12/11)
3856    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
3857      changed exf_set_gen.F so that
3858        genperiod=0 means input file is one time-constant field and
3859        genperiod=-12 means input file contains 12 monthly means
3860    o CG2D: use pre-computed solver main-diagonal (stored in common block);
3861      this affects truncation error ; generate new output file for exp. which
3862      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
3863        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
3864        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
3865        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
3866        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
3867        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
3868    o start implementation of deep-atmosphere and anelastic formulation
3869    o verification: remove 2nd copy of input files and use script "prepare_run"
3870      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
3871    o mom_common/vecinv/fluxform: fix a few initialisation isssues
3872    o profiles: fix for multithreaded case
3873    
3874    o diagnostics: rename few diags:
3875      s/'PRESSURE'/'RCENTER '/g
3876      s/'TICE    '/'oceFreez'/g
3877      s/'TAUX    '/'oceTAUX '/g
3878      s/'TAUY    '/'oceTAUY '/g
3879      s/'SWFLUX  '/'oceQsw  '/g
3880      s/DIFx/DFxE/g
3881      s/DIFy/DFyE/g
3882      and add few ocean-forcing diagnostics:
3883      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
3884    o modifications to pkg/seaice/growth.F and budget.F, which change results of
3885      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
3886      as actual snow thickness.  It now refers everywhere to effective snow
3887      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
3888    
3889    checkpoint58r_post (2006/11/17)
3890    o modifications to pkg/seaice/growth.F, which change results of
3891      lab_sea experiment: fixes pertain to melting snow over open water, to
3892      masking EVAP under sea ice, and to using the correct AREA variable for
3893      computations of EVAP, PRECIP, HSNOW, and GHEFF
3894    o add ability to read bathy, salt, and theta using MNC (off by def)
3895    o add flooding algorithm and advection of HSNOW for pkg/seaice;
3896      both are turned off by default and do no change any results
3897    o seaice advection with pkg/thsice: a step toward the use of non-linear
3898      advection scheme, but #ifdef or commented out for now (requires more EXCH).
3899    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
3900      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
3901      in natl_box (affects results @ truncation level: update output.txt)
3902    o multi-threading and IO:
3903      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
3904      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
3905        (needed to work with SingleCpuIO): tested in all verif. exp.
3906    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
3907      affects the results (but none of the verification test uses this scheme).
3908    o Adding some pkg/diagnostics capability to pkg/seaice
3909      (will certainly be subject to changes)
3910    o ctrl: adding new control variables:
3911      lwflux, lwdown, evap, snowprecip, apressure, runoff
3912    
3913    checkpoint58q_post (2006/10/20)
3914    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
3915      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
3916      high_res_cube configuration by 4% on Columbia.
3917    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
3918      add (in global_with_exf/code) a version of EXF_INTERP_READ without
3919      dynamical allocation (seems to work in multi-threaded).
3920    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
3921      single CPU io) so that TAF does not have to see EESUPPORT.h
3922    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
3923    
3924    checkpoint58p_post (2006/09/08)
3925    o obcs: stop if obcs is used with useCDscheme = .true.
3926    o shelfice:
3927     - fix a sign error so that no slip at shelfice interface works
3928     - remove stop for combination non-hydrostatic code and shelfice. That does
3929       not mean, that the results are correct, but at least they are numerically
3930       stable
3931    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
3932    o added adjoint exch routined for all exch*3d* routines
3933      and updated flow directives
3934    
3935    checkpoint58o_post (2006/08/28)
3936    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
3937      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
3938    o change controling S/R for writing pickup file (new S/R do_write_pickup)
3939      and clean-up reading/writing of pickup files.
3940    o fix local version of read/write pickup (NH part) in rotating_tank/code
3941    o simplify EXCH interface:
3942     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
3943     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
3944    o added the regrid package
3945    o shelfice:
3946     - add a simple boundary layer scheme to reduce noise
3947     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
3948    
3949    checkpoint58n_post (2006/08/14)
3950    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
3951       local variable (not in common block).
3952    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
3953      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
3954      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
3955        to work with SingleCpuIO.
3956    o add "_d 0" to real constant of pkg/cfc subroutines ;
3957       update exp. cfc_exemple & tutorial_cfc_offline output files.
3958    o multi-threading and IO:
3959      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
3960        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
3961      - barrier before and after reading.
3962      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
3963      - avoid using MDS_WRITELOCAL for LAND pkg output.
3964      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
3965        common-block variables ; Allows multi-threading with master-thread IO.
3966    o change default MAX_NO_THREADS from 32 to 4 ;
3967      and stop cleanly when MAX_NO_THREADS is too small.
3968    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
3969    
3970    checkpoint58m_post (2006/07/17)
3971    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
3972       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
3973    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
3974       keep global_ocean.90x40x15 (for AD testing) with former secondary test
3975       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
3976    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
3977        add MITgcm_tutorials (= code + all the tutorials)
3978    o ecco, option to compute cost for total ssh (mean+anom)
3979    o consistent with addition of ptracer and ssh in pkg/profiles
3980    o profiles: adding ptracer and ssh
3981    o testreport: change multi-test output-file name
3982      (from output.txt.{name} to output.{name}.txt)
3983    o profiles: now ok for mutli-tiles case
3984    o seaice: add 4 parameters for different advection schemes for area,
3985      (effective) seaice thickness, enthalphy, and snow height. Their default
3986      is the standard parameter SEAICEadvScheme
3987    o calc_gw:
3988     - add cosFacU in zonal viscous flux (harmonic.visc.).
3989     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
3990       of tutorial_plume_on_slope.
3991    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
3992    o calc_gw: true flux-form, account for horizontal grid spacing.
3993      update rotating_tank results, but not plume_on_slope (affected at
3994      truncation level, 11 digits).
3995    
3996    checkpoint58l_post (2006/07/12)
3997    o calc_gw:
3998     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
3999     - remove side-drag for now (need to fix it); update plume_on_slope results.
4000     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
4001    o commit code to make SST/SSS weights spatially variable
4002      (based on either variable in-situ or variable initial T/S weights)
4003    o pkg/ecco:
4004      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
4005        now based on horizontally varying weights wthetaLev, wsaltLev
4006      * cost_averagesflags now returns year indices in addition to day, month
4007      * sflux balance is performed on annual basis
4008        (sflxumm, sfluxmm2, bal_sfluxmm)
4009      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
4010        including separate counting and multipliers
4011    o pkg/rbcs
4012      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
4013    
4014    checkpoint58k_post (2006/07/06)
4015    o testreport:
4016     - always build in dir. "build" (if not there, mkdir build instead of building
4017       & running in input)
4018     - run in dir run (if it exists), in build otherwise.
4019     - call prepare_run (if input/prepare_run exists)
4020     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
4021    o pkg/exf modifications to interpolation and rotation routines for more
4022       reasonable treatment of North Pole singularity: for tracers North Pole
4023       value is set to northernmost zonal-mean value, for zonal velocity it is
4024       set to zero, and for meridional velocity it is set to northernmost value.
4025    o pkg/exf/exf_check_range.F
4026     - add tile index to diagnostics and move stop statement to the very
4027       end of the routine.
4028    o pkg/diagnostics: (diagnostics_main_init.F)
4029      define title of isomorphic variables according to the current config.
4030    o pkg/thsice with pkg/seaice dynamics:
4031    - fix domain of computation (interior only, required for exf) and do exchanges
4032    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
4033    o towards a standard way of dealing with multi-threading in MONITOR
4034      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
4035    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
4036       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
4037    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
4038    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
4039    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
4040       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
4041    o tracer advection:
4042     - clean-up and simplify calc_common_factors.F
4043     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
4044       advection subroutine (but still not used within DST advection S/R)
4045    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
4046    
4047    checkpoint58j_post (2006/06/15)
4048    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
4049      from file (collects calls previously in FORWARD_STEP)
4050    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
4051    o adjoint store dir. adjusted accordingly
4052    o genmake2
4053      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
4054    
4055    checkpoint58i_post (2006/06/14)
4056    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
4057      on wind stress (SEAICEstressFactor defaults to 1.)
4058    o Total number of Timers is finite (<=40): comment out 2 non-essential one
4059      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
4060    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
4061      on CS-grid: no longer loosing mass.
4062    o exf & curvilinear-grid: no longer modify longitude xC & xG.
4063    o pkg/ggl90: fix sloppy output and fix a bug
4064    o pkg/seaice: added SEAICEuseEVPpickup parameter
4065      - Set to false in order to start EVP solver with
4066        non-EVP pickup files when using SEAICEuseEVP
4067      - fix sign error in diffusion in seaice_calc_rhs
4068    
4069    checkpoint58h_post (2006/06/07)
4070    * Modifications for bottom topography control
4071      o replace hFacC by _hFacC at various places
4072      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
4073      o add non-self-adjoint cg2d_nsa
4074      o update autodiff support routines
4075      o re-initialise hfac after ctrl_depth_ini
4076      o works for 5x5 box, doesnt work for global_ocean.90x40x15
4077    * Adding verification for 5x5 box (4-layer) bottom topography control
4078    
4079    checkpoint58g_post (2006/06/07)
4080    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
4081       used for mean seasonal cycle, mean diurnal cycle); add an example
4082       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
4083    o pkg/ggl90:
4084      - add parameter (minimum surface kinetic energy)
4085      - fix bug (avoiding division by zero)
4086    o couple pkg/thsice to pkg/seaice:
4087      - modify advection in seaice to accomodate new scalar fields to be advected
4088      - only muliDimAdection scheme work with seaice/thsice
4089      - mapping of thsice-variables to seaice-variables, back and forth
4090      - does not break the verification experiments, but does not give the
4091        desired results either
4092    o pkg/seaice
4093      - make (default) second order advection a bit less confusing?
4094    
4095    checkpoint58f_post (2006/06/05)
4096    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
4097      to pkg/seaice):
4098      - new routines thsice_map_exf and thsice_get_exf provide the interface
4099      - add an additional formal parameter to thsice_solve4temp
4100    o pkg/exf:
4101      - add new fields wspeed, snowprecip (to be able to couple to thsice)
4102      - correct Stefan-Boltzmann constant
4103      - new parameter for longwave surface emittance
4104      - separate some stuff from exf_bulkformulae into new routines  
4105        exf_radiation, exf_wind
4106      - add new parameters and constants: longwave emissivity for ocean, ice
4107        and snow, evaporation parameters over ice
4108      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
4109        either wind from stress or stress from wind
4110    o pkg/thSIce:
4111    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
4112    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
4113       and THSICE_CALC_THICKN
4114    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
4115    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
4116      to make debugging easier.
4117    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
4118    o pkg/bulk_force:
4119      - clean-up comments and parameters ;
4120      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
4121    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
4122      generate new output for test-experiment: aim.5l_cs.thSI
4123    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
4124      testreport accordingly
4125    
4126    checkpoint58e_post (2006/05/17)
4127    o SEAICE_CGRID adjoint done
4128    o R_STAR adjoint implemented.
4129      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
4130      * need to sort out init. of h0facc, etc.
4131    o Make pkg/profile fully independent of ecco,cost, etc. stuff
4132      to be able to use it in pure forward.
4133    
4134    checkpoint58d_post (2006/04/21)
4135    o upgrade simple test-experiment to tutorial example:
4136     step.1: duplicate the experiment and (step.2) will remove the old copy.
4137      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
4138      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
4139      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
4140      tutorial_global_oce_biogeo    <- copy of dic_example
4141      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
4142      tutorial_plume_on_slope       <- copy of plume_on_slope
4143      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
4144      tutorial_global_oce_optim     <- empty for now (David ?)
4145      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
4146     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
4147    o correct a sign problem in cost_scat.F
4148    o obcs and ptracers: fix boundary conditions for advections schemes
4149      with larger stencil
4150    o thsice adjoint: start
4151    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
4152      completeness
4153    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
4154      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
4155    o ptracers adjoint:
4156      * avoid extensive recomputatations
4157      * fix missing re-init. of gptr (missed by TAF)
4158    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
4159      me to turn off the excessive output to STDOUT that this package produces
4160    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
4161      and add those terms in Vector-Invariant formulation.
4162    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
4163      if the control period (xx_hfluxperiod etc) is 0
4164    o in profiles pkg, clean routines and fix details
4165    o in ecco pkg, reading ssh data:
4166      fix problem in case the model does not start at iter0=0
4167    o fix mnc-pickup/restart for ptracers
4168    o new package prifiles:
4169      code to compute profile-based cost by Gael Forget
4170      (modifs in ecco, ctrl, autodiff)
4171    o Benign bug fix in initialization (spotted by M. Mazloff) of
4172      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
4173    
4174    checkpoint58c_post (2006/03/23)
4175    o adjoint: finish NLFS adjoint and provide reference output in
4176      verification/global_ocean.90x40x15/results_ad_nlfs
4177    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
4178      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
4179      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
4180      with SEAICE_CGRID defined.
4181    o move calendarDumps from "data" to "data.cal" and clean-up the code
4182      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
4183    o add useEXF & useCAL flags (for now, set in hard-coded way)
4184    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
4185      (were missing in NH mode, and wrong in quasihydrostatic mode).
4186      waiting for Chris updated version of calc_gw to add those CALLs.
4187    o fix bug in quasihydrostatic S/R ;
4188      add a test for this option: global_ocean.90x40x15.qshyd
4189    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
4190      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
4191    o add on/off flag useOffLine for package OFFLINE
4192    o seaice:
4193      - modify advection so that it works also on the C-grid
4194      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
4195        problem in multi-tile runs with C-grid
4196      - add flags for clipping ice velocities and/or masking solver forcing
4197      - fix drag (ocean on ice) formulation and a bug that caused noise in the
4198        C-grid solver
4199      - added a few comments to seaice_diffusion.F
4200      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
4201        are now exclusive)
4202      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
4203        required re-ordering the code a little:
4204       + make DAIRN global variable (defined in SEAICE)
4205       + move computation of the viscosities eta and zeta into a new separate
4206         routine (because I need to recompute them in seaice_ocean_stress.F)
4207    
4208    checkpoint58b_post (2006/03/13)
4209    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
4210      update output.txt of exp. aim.5l_cs.thSI
4211    o various mnc cleanups and improvements:
4212      + shrink lookup tables by factor of ~4
4213      + better error reporting when running out of lookup space
4214      + able to handle longer path/file names (up to 500 chars)
4215    o adjoint:
4216      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
4217      - TBD: "hidden" mom_vecinv recomp. in dynamics
4218    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
4219     (allow to differentiate between forcing components using new integer flags:
4220      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
4221     and add new flag to put Dissipation tendency out of Adams-Bashforth.
4222    o ecco
4223      - enable trend removal from SSH anomaly obs.
4224    o adjoint
4225      - a fix for PmEpR when #undef EXACT_CONSERV
4226      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
4227      - try to fix "hidden" recomp. in forward_step for NLFS
4228        (NLFS seems broken sometimes after I checked it in)
4229    o seaice:
4230     - add c-grid version of the dynamic solver:
4231       + three new routines that are the c-grid substitute lsr, dynsolver
4232         and ostres
4233       + put a few fields that were local to dynsolver into global common
4234         blocks, so that I can move the computation of stresses etc into
4235         seaice_lsr (saves coding but may break the adjoint).
4236     - replace more hardwired parameters by runtime parameters
4237     - add ice masks that mask the rhs of the implicit solvers where there
4238       is no ice (commented out in seaice_dynsolver, because i am not sure
4239       if this works properly), eventually this should replace the clipping
4240       of ice velocities in seaice_dynsolver to +/-40cm/s.
4241    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
4242      include it only where its needed
4243    o move balancing of fluxes before the call of external_forcing_surf
4244    o seaice:
4245      - correct units of turning angles (now they are really in degrees)
4246      - move computation of GWATX/Y out of main routine into dynsolver
4247      - initialize GWATX/Y in seaice_init
4248    o Apply mask on Fresh-Water flux (needed for SSH forcing).
4249      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
4250    o seaice: add runtime flags for turning angles (default to zero)
4251    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
4252      and trend from exf forcing and ctrl control adjustments
4253    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
4254      (since checkpoint57x_post)
4255    o change the default rotation period to 86164.s = the Earth rotation
4256    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
4257      and based on a reference stratification. Tested within hs94.cs-32x32x5.
4258    o seaice advection: add code for choosing between the default (2nd order
4259      central differences) and multiDim advection schemes provided by
4260      pkg/generic_advdiff
4261    o seaice:
4262      - removed all references to SEAICE_GRID.h fields from
4263        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
4264        (cubed-sphere configuration will change a little)
4265      - grid computations in seaice_init are obsolete now.
4266      - cleaned up code a little so that is easier to read (hopefully).
4267      - added new (better?) discretizations of default advection and diffusion
4268        (turn on with SEAICEuseFluxForm)
4269      - replace 1 in 3d global fields by kSurface in growth.F
4270      
4271    checkpoint58a_post (2006/02/13)
4272    o seaice:
4273      - bug fix in advect.F
4274    o shelfice:
4275      - separate shelfice load anomaly from pload (breaks with time
4276        dependent forcing), => introduce constant field shelficeLoadAnomaly.
4277        Its default is 0., but it may be computed more cleverly from (unknown)
4278        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
4279        done offline. A good approximation of the pressure load anomaly is
4280        necessary to avoid large initial adjustment processes underneath
4281        deep-reaching shelfice.
4282      - small fix in ISOMIP shelfice_thermodynamics
4283      - add more sophisticated thermodynamics of Hellmer (1989), this is
4284        now the default
4285      - give a few constants more intuitive names
4286    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
4287      if bulk formulae are used in long integration (especially EmPmR). Turn
4288      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
4289      if balancePrintMean, the imbalance that is substracted is printed to
4290      STDOUT.
4291    o fix bug (typo) in obcs_apply_eta.F
4292    o add a new package shelfice which enables us to model the circulation
4293      underneath shelf-ice with draughts of hundreds of meters.
4294     - works
4295     - to do: + include improved thermodynamics
4296              + check whether kSurfC (from model/inc/SURFACE.h) can be used
4297                instead of new field kTopC
4298              + can we use topoFile, Ro_surf and existing code in ini_depth.F
4299                instead of new field R_shelfIce and new code in ini_depth.F
4300                and ini_mask_etc.F?
4301              + adjust vertical mixing schemes?
4302    o seaice pkg:
4303     - add a cpp-flag to include a simple formula for a salinity dependent
4304       freezing point of sea water at the surface
4305     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
4306       meridional stresses are now different (and hopefully correct)
4307    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
4308       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
4309       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
4310    o pkg/diagnostics: add options and parameters for regional-statistics
4311       diagnostics ; define regions by reading a region-mask from a file
4312       (might add other options later)
4313    o pkg/bulk_force:
4314     - add option and parameters to use AIM surface-flux formulae.
4315     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
4316       others forcing fields (defined in PARM05, parameter file "data") are loaded
4317       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
4318     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
4319     - use the right EXCH call for uwind,vwind (to work on CS-grid).
4320     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
4321       and parameters (note: calcWindStress replaces .NOT.readwindstress).
4322     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
4323    
4324    checkpoint58 (2006/01/12)
4325    o add "--embed-source" option to genmake2 which, when the supporting
4326      tools can be compiled (as determined by genmake2) will turn on the
4327      embed_files package which then embeds the entire MITgcm source code
4328      (*.[fFhc] + Makefile) used for the build within the executable
4329      - requested by CNH but off by default
4330      - adds a paltry <9MB to the mitgcmuv executable in most cases
4331      - only writes the output when useEMBEDSRC in eedata is true
4332    o clean up 3-dim. relaxation codes:
4333      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
4334      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
4335      * Thanks to Tom Haine for testing!
4336    
4337    checkpoint57z_post (2005/12/31)
4338    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
4339      affects output (@ truncation level) of exp. plume_on_slope ; updated.
4340    o fix the pickup behavior for obcs in combination with ptracers
4341    o fix a bug in ptracers_external_fields_load
4342    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
4343      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
4344    o transfered surface NH pressure to eta field (if exactConserv).
4345    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
4346         and update lab_sea output.txt file.
4347    o completing 3-dim. relaxation code: additional term
4348         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
4349      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
4350      * At compile time, in "EXF_OPTIONS.h" set
4351          #define  ALLOW_CLIMTEMP_RELAXATION
4352          #define  ALLOW_CLIMSALT_RELAXATION
4353      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
4354          tauThetaClimRelax3Dim = 15552000.0,
4355          tauSaltClimRelax3Dim  = 15552000.0,
4356      * 3 cases:
4357          1) Use a constant-in-time 3-dim. field
4358          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
4359          3) Real-time relax. to time-evolving prescribed field
4360    o Adding Laplacian-type smoothness constraint on
4361      initial and boundary (forcing) controls (ic, bc)
4362      * enable at compile-time via
4363        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
4364      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
4365      * Absolute scale somewhat unclear so far
4366      * no area weighting was included since no other cost term does so far
4367    
4368    checkpoint57y_post (2005/12/08)
4369    First step for a NLFS adjoint
4370    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
4371    o new init. routines for calc_r_star, calc_surf_dr
4372    o still need to deal with ini_masks_etc
4373    o testreport seemed happy
4374    checkpoint57y_pre (2005/12/08)
4375    
4376    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
4377    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
4378    o add new offset feature to offline pkg (plus minor cleanup)
4379    o cfc fixes for final year of integration
4380    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
4381      be in GCHEM_OPTIONS).
4382    
4383    checkpoint57x_post (2005/12/04)
4384    o fix testreport Pb in multiple test experiment.
4385    o cleanup our namelist syntax in verification:
4386      - make it more F95 standards compliant (some work still needed)
4387      - allows the vast majority of our tests to work with gfortran
4388    o Non-Hydrostatic:
4389     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
4390     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
4391    o Allow to apply AB on T,S rather than on AB(gT,gS):
4392     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
4393     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
4394       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
4395     - need a "clever" read_pickup to restart from the other AB formulation
4396    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
4397    o remove some unused variables (reduces number of compiler warnings)
4398    o adjoint
4399      * Disable useVariableViscosity for adjoint for time being
4400        (there are a number of extensive recomputations)
4401      * Initialize certain variables needed for adjoint
4402    
4403    checkpoint57w_post (2005/11/03)
4404    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
4405                 fix the singleCpuIO RS version of MDSWRITEFIELD
4406       and add a WARNING if using globalFiles=T with multi-processors.
4407    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
4408      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
4409    o tracer advection scheme:
4410      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
4411       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
4412       was not very convenient).
4413      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
4414       (further tests needed for the implicit DST & Flux-Limiter schemes).
4415    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
4416      and sRef for convenience, handy, when you want to initialize
4417      ptracers in a large domain with a constant non-zero value. Also,
4418      untangle ptracers_init.F a little.
4419    
4420    checkpoint57v_post (2005/10/13)
4421    o change dome exp. to use variable viscosity in side-drag terms.
4422    o remove all the files from the cfc_offline test since they are now
4423      incorporated into tutorial_cfc_offline which has been producing
4424      identical results for a few days of testing
4425    o add new parameter: sideDragFactor to enable half-slip-side BC
4426      and change side-drag S/R to use viscosity from mom_calc_visc
4427      (can switch back by setting sideDragFactor=0.); affects results at
4428      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
4429       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
4430    o vorticity & strain are now computed without masking, to account for
4431      no-slip-side BC in variable viscosity calculation ; mask is applied
4432      anyway later on, before computing advection/coriolis terms.
4433    o modify exp4 to test new obcs support for reading from external files
4434      and for passive tracers
4435    o fix behavior of ptracers_monitor when monitor output is written to a
4436      netcdf-file; still not independent of monitor.F (writes in the same
4437      file).
4438    o change default value of tRef (put a uniform, meaningful value for ocean
4439      & atmos) and initialize sRef (was missing, as Martin mentioned).
4440    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
4441      to be proportional to enstrophy dissipation length.  Thus,
4442       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
4443      This is now consistent with Smagorinsky and with the manual.
4444    
4445    checkpoint57u_post
4446    o OBCS and PTRACERS: add open boundary support for passive tracers
4447      - either use homogenous (pseudo) v.Neumann conditions or prescribe
4448        OB-values from file; this is not different from the way theta and salinity
4449        are treated
4450      - however, Orlanski-radiation conditions are not supported, and the model
4451        will stop if you use pTracers and Orlanski at the same time.
4452      - beefed up the rountine obcs_external_fields_load: now only those open
4453        boundary values are overwritten with values from files for which there
4454        are really files, otherwise the OB-fields remain untouched. This makes
4455        it possible to use different OBs at different ends of the domain (as
4456        with EXF)
4457    o reduce number of exch calls in shap_filt (s2).
4458    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
4459      truncation level) 4/5 MLAdjust test results (11&12 digits match).
4460    
4461    checkpoint57t_post (2005/10/03)
4462    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
4463    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
4464      same truncation, independent of the face number: affects affects several
4465      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
4466    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
4467      note that biharmonic viscosity + no-slip was not tested in any experiment.
4468    o fix bug in non-linear free-surf side-drag ; generate new output for
4469      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
4470    o make mnc honor the writeBinaryPrec flag for most kinds of output
4471    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
4472    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
4473      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
4474    o add brackets in multi-terms sum to get same truncation, independent of
4475      the face number (manage to get exactly same value of gU,gV at the cs-edge)
4476      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
4477    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
4478      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
4479      a maximum grid-scale Reynolds number.  Also, changes all length calculations
4480      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
4481      Suggested values of viscosity parameters found in mom_calc_visc.
4482      Many new viscosity diagnostics available.
4483    
4484    checkpoint57s_post (2005/09/20)
4485    o Add clearing-house for viscosity calculations, mom_calc_visc and
4486      correct numerous bugs in LeithD and Smagorinsky discretizations.  
4487      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
4488      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
4489      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
4490      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
4491      The Strain-Tension form is now called with useStrainTensonVisc=.true.
4492      ViscAhStrain and viscAhTension are now retired.
4493    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
4494    o In response to JMC's bug report, genmake2 now ignores any soft-links
4495      that it finds in the *current* directory when searching for files.
4496      Soft-links found in any other source directories will still work as
4497      they did before.
4498    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
4499      a C routine to unlimit the stack size
4500    o mnc-ify pkg/aim snapshot vars
4501    o mnc-ify pkg/land as requested by Daniel
4502    o various changes to mnc including:
4503      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
4504      - output can now be grouped so that all files within a group
4505          change the ITER portion of their names in lock-step together
4506      - can now read ("global") PER-FACE (in addition to PER-TILE) files
4507          and works with both EXCH1 and EXCH2 (but needs more testing)
4508      - writing works for all verification test cases w/ g77 on Linux
4509    
4510    checkpoint57r_post (2005/09/07)
4511    o make MNC variable initialization happen earlier
4512    o add diagnostics for (almost) each term of the momentum Eq.
4513    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
4514    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
4515    o remove MINIMAL_TAVE_OUTPUT option ;
4516      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
4517    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
4518      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
4519    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
4520    o add time-dependent SST, SSS control
4521    o cost terms in ecco/ modularized (new cost_generic.F)
4522    o cost_averages routines are modularized (new cost_averagesgeneric.F)
4523    o new infrastructure for seaice model vs. obs misfits in seaice/
4524      * driver from the_main_loop.F is seaice_cost_driver.F
4525      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
4526      * gradient check in Exp. 6a of natl_box_adjoint/
4527    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
4528      (see README file)
4529    
4530    checkpoint57q_post (2005/08/19)
4531    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
4532    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
4533      - bug was reported by Jean-Michel and Ian Fenty
4534    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
4535      update exp. cpl_aim+ocn output.
4536    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
4537      Needed for high-res. runs with large global files
4538      to be able to limit tapelev size
4539    o Changed some tests for adjoint:
4540      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
4541      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
4542      * global_ocean.90x40x15/ back to default 3-level checkpointing
4543    o Modifications to enable scripted COMMON to MODULE conversion
4544      * verification/OpenAD/code/ has necessary scripts and description;
4545      * converts, compiles and runs successfully;
4546    
4547    checkpoint57p_post (2005/08/01)
4548    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
4549    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
4550      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
4551    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
4552    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
4553      (was already the case for dissipation with mom_vecinv,
4554       and also the case for grad.PhiHyd when staggered-timeStep)
4555      This will allow to put dissipation out-off the AB time-stepping.
4556     Unfortunately, affects truncation error. Update output of exp. that "fails"
4557      (cg2d matching number) and leave the others for later: front_relax(10),
4558      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
4559      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
4560    
4561    checkpoint57o_post (2005/07/30)
4562    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
4563      (2) its ready to be documented during the 20050801 DocFest
4564    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
4565      for ideal_2D_oce and lab_sea on linux_ia32_g77
4566    o set to #undef CTRL_SET_OLD_MAXCVARS_30
4567      in global1x1_tot/code_seaice_adj to access indices 32, 33
4568      (worth another tag)
4569    
4570    checkpoint57n_post (2005/07/29)
4571    o adding precip control xx_precip 32
4572    o adding swflux control xx_swflux 33
4573    o Replacing 10 forcing penalty cost routines by 1 generic.
4574    o Implementing partitioning in time-mean and variable adjustment
4575      for atmos. state.
4576    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
4577    o in natl_box_adjoint:
4578      * updated exp 1 to 10
4579        (but does not have time-mean vs. variable split results yet)
4580    o updated global1x1/*_seaice_adj/
4581      to incorporate latest changes
4582    o enable useSingleCpuIO for mdsio vector routines
4583      (applies in particular to tapelev I/O)
4584    o removed inefficient K-loop in all active_file*control*.F
4585    
4586    checkpoint57m_post (2005/07/28)
4587    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
4588      and advect_cs (use EXCH-2 and standard cs-32 grid files).
4589    o pkg/exch2: filling of face-corner halo regions is optional
4590      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
4591    
4592    checkpoint57l_post (2005/07/14)
4593     tag before updating tutorials (pre-release-2)
4594    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
4595       for output and interpolation of input fields onto model grid)
4596    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
4597       Affects results of exp. rotating_tank ; update output.txt.
4598    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
4599          and taking the square quantity and/or using a fraction-weight field.
4600    o fix aim_diagnostics_init.F mate numbers.
4601    o add mnc output capability to diagnostics/diagstat and update
4602      our cvsignore files for the ACSII output generated
4603    
4604    checkpoint57k_post (2005/07/02)
4605    o lab_sea now uses diagnostics package and provides a suite of
4606      new EXF diagnostics output.
4607    
4608    checkpoint57j_post (2005/06/30)
4609    o exf
4610      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
4611        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
4612        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
4613      * extended diagnostics output
4614        - now includes all EXF variables
4615        - hs, hl moved to common block
4616        - separate S/R for diagnostics, called after ctrl vector is added
4617        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
4618        - EXFqnet contains true Qnet (i.e. includes qsw)
4619      * updated verif. lab_sea, global_with_exf
4620      * Rearranging hflux (exf_mapfields -> exf_getforcing)
4621        to ensure that diagnostics sees a true EXFqnet
4622    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
4623    o diagnostics pkg: change pointers so that 1 diagnostic can be used
4624      several times with different frequencies.
4625    o mnc-ify the thsice package as requested by Daniel Enderton
4626      - the monitor--MNC output needs work
4627      - many attributes need to be added (most are currently blank)
4628    o mnc-ify theaim_v23 package as requested by Daniel Enderton
4629      - many attributes need to be added (most are currently blank)
4630    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
4631    o add Sadourny like discretization to the 4th.O vorticity advection scheme
4632    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
4633      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
4634         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
4635    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
4636     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
4637    
4638    checkpoint57i_post (2005/06/19)
4639    o Diagnostics package was changed: diagnostic allocation is now deactivated
4640      by setting an empty file name in the namelist (used to be by setting 0 frequency)
4641    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
4642      add 1rst Order upwind vertical Shear.
4643    o add a quick fix for A/B checkpointing in OFFLINE mode
4644    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
4645      end-run around the C/Fortran linking horror in eesup/src/timers.F
4646    o added pkg/runclock: allows user to terminate run based on wall clock
4647    o added non-hydrostatic scaling parameter: nh_am2
4648    o pkg/my82: futile attempt to make results compiler-independent by adding
4649      some "_d 0", etc. no effect.
4650    o for mnc output, fill the 'T' coordinate var with myTime and create a
4651      separate 'iter' variable for iteration count
4652    o pkg/diagnostics:
4653      add new capability: output of Global/Regional & per-level statistics ;
4654      tested against monitor output (including land & thSIce) on various exp.
4655    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
4656    
4657    checkpoint57h_done (2005/05/19)
4658      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
4659      data.diagnostics, data.gchem, data.ptracers) is done.
4660    
4661    o pkg/diagnostics: prepare for Global/Regional statistics.
4662      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
4663    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
4664      and rename it: DIFFERENT_MULTIPLE
4665    
4666    checkpoint57h_post (2005/05/14)
4667    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
4668    o pkg/diagnostics: change output frequency, now in seconds (instead
4669      of Nb of iterations). This requires to change data.diagnostics.
4670    checkpoint57h_pre (2005/05/12)
4671    
4672    o in mnc, let the user create the output dir if both mnc_outdir_date
4673      and mnc_outdir_num are false
4674    o add fflags() to pkg/diagnostics which allows one to specify, on a
4675      per-file basis, the file precision [default behavior is unchanged]
4676    o added diagnostics to pkg/kpp, including computation of mixed layer
4677      depth based on a temperature/density criterion
4678    o updated verification/natl_box to test the new pkg/kpp diagnostics
4679    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
4680    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
4681    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
4682      not mnc -- this mistake was found by JMC and is now corrected
4683    
4684    checkpoint57g_post (2005/04/15)
4685    o add Adams-Bashforth 3rd Order time stepping:
4686      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
4687      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
4688    checkpoint57g_pre (2005/04/15)
4689    
4690    o make lambda[Theta,Salt]ClimRelax spatially varying
4691      (default remains spatially uniform constant based on tau)
4692    o added new control variables
4693      * init. uVel, vVel, etanN
4694      * lambda[Theta,Salt]ClimRelax
4695    o separate masks used for ctrl_pack/unpack 'from write_grid' output
4696      (suggested by G. Forget)
4697    
4698    checkpoint57f_post (2005/04/06)
4699    o add parameter "baseTime" = model base time = time at iteration zero
4700      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
4701      account for baseTime shift
4702    o move Coriolis arrays from PARAMS.h to GRID.h
4703    checkpoint57f_pre (2005/04/06)
4704    
4705    o mnc-ifying the seaice package
4706    o introduced an alternative length scale calculation for use in the limiting
4707      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
4708    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
4709    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
4710      as well as grad(vort3).  Made it compatible with both approximate form
4711      for the cubed sphere and full form of these gradients.  Added flag
4712      useFullLeith to select between approximate and full form.  
4713    o add "d0" in getcon.F to reduce differences between compilers/platforms
4714      update output.txt of exp. fizhi-gridalt-hs
4715    o change port_rand funtion to allow to set the seed.
4716    o fix obscure MNC bug involving conversion between reals and integers
4717      - it caused no problems with certain (eg. gcc, ifc) compilers but the
4718        new version is now more standards-compliant
4719    o adjoint-related modifications
4720      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
4721      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
4722      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
4723    
4724    checkpoint57e_post (2005/02/28)
4725    o Adding eddy stress controls a la Ferreira et al.
4726    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
4727    
4728    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
4729      update output.txt of exp. fizhi-gridalt-hs
4730    o add more "Z" dimensions and associated coordinate vars to MNC
4731    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
4732    o parameter calendarDumps: when set, approximate months (30-31 days) and years
4733      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
4734      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
4735      months and years.  Requires pkg/cal.
4736    o diagnostics: add pickup functionality
4737      - off by default for backwards compatibility
4738      - current version only uses MDSIO -- MNC will be added
4739    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
4740    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
4741    
4742    checkpoint57d_post (2005/02/11)
4743    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
4744    o modify verification/ideal_2D_oce so that it tests the creation of mnc
4745      output from the diagnostics package
4746    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
4747    o make genmake2 more portable by using ".$FS" instead of ".f" for more
4748      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
4749    o add coordinate variables to the MNC output from the diagnostics package
4750    o change MNC-flags default value: true when useMNC=TRUE
4751    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
4752      the ability (off by default) to read the grid information using MNC
4753    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
4754    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
4755    o do snap-shot diagnostics at the middle of the time-interval (instead of
4756      at the end).
4757    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
4758      new test for AIM with thSIce + slab-ocean
4759    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
4760    o move state variable diagnostics to the beginning of the time step ;
4761      (note: still needs some work specially for snap-shot diagnostics)
4762      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
4763    
4764    checkpoint57c_post (2005/01/27)
4765    o Change testing option (-ieee) to get closer agreement between g77 & ifort
4766    o generate new output.txt files on faulks with g77 & the new -ieee option
4767    checkpoint57c_pre (2005/01/27)
4768    
4769    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
4770      update output.txt of exp. global_ocean.90x40x15
4771    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
4772      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
4773    o add saltFlux(+File) forcing capability with periodicExternalForcing
4774    o allow to use pkg diagnostics for GM-Redi & ThSIce output
4775    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
4776    o improvements for the MNC output from DIAGNOSTICS:
4777      - correct handling of the unlimitied dimension
4778      - all dims now have associated coordinate variables
4779      - variables located at U, V, and Corner ("Z") points are now written
4780        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
4781        *all* data points are output
4782    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
4783    o added pkg/seaice/seaice_monitor.F
4784    o mdsio_readfield.F can now read files visible only to master MPI process.
4785    o pkg/seaice: some test code for ice-modified ocean stress
4786    o exf_getffields interpolation defaults to bilinear for all scalar forcing
4787      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
4788      spurious negative numbers for precipitation and humidity.  Will cause
4789      some small numerical differences for integrations using pkg/exf/exf_interp.F.
4790    o pkg/ctrl/
4791      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
4792        May be enabled via doPackDiag
4793      *  introduce z-scaling of
4794         + gradient (doZscalePack) and
4795         + control (doZscaleUnpack)
4796    o pkg/mdsio/
4797      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
4798      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
4799    
4800    checkpoint57b_post (2004/12/20)
4801    o simplify options in diagnostics_fill arguments (remove weird combinations)
4802    o fix MNC coordinate variables so that they now contain per-face index
4803      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
4804      general, EXCH2 grids are only aligned to a "local" coordinate system
4805    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
4806    o Implement instantaneous output within pkg diagnostics:
4807      setting a negative frequency in data.diagnostics produces
4808     "snap-shot" output (as opposed to time-average if freq > 0)
4809    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
4810      NOTE: change ptracer diagnostics name: use 2 characters to work with
4811            more than 9 tracers. Add also diagnostics of advect & diffus flux.
4812    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
4813      becomes the coordinate variable for the 'T' dimension
4814    o add CF-style coordinate variables to MNC
4815      - just a first cut:  numbers are meaningless on the cubesphere and
4816        missing along the T axis but otherwise it works!
4817    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
4818    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
4819    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
4820      this is based directly on what the model compute, so that the content of
4821      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
4822    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
4823    o clean up build options files for SunOS, in particular
4824      - remove -traditional from xmakedepend
4825      - change -xarch=v9 to -xarch=native for f77
4826      - restore use of make (not gmake)
4827      - add CC=gcc if using g77
4828    o changes per discussion of AM, JMC, & EH3 today:
4829      - move redundant "grid" variables out of "state" -- in preparation of
4830        creating proper CF-style coordinate variables and in recognition
4831        that any/all grid variables can be easily copied (eg. w/NCO) from
4832        the grid files into any of the other NetCDF files
4833      - *always* output grid variables with MDSIO (this will eventually be
4834        changed)
4835      - output MNC grid file if useMNC is true
4836    o every instance of _END_MASTER() has been found and replaced with
4837      _END_MASTER( myThid ) in order to satisfy certain picky Sun
4838      preprocessors
4839    o re-arrange diagnostics pkg initialisation:
4840     - allow each package to extend the available diagnostics list
4841     - add some checking and fix small problems (multi-threaded, ...)
4842     - new S/R diagnostics_fill (replace fill_diagnostics):
4843       look through the short list of active diag. (instead of the long list)
4844       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
4845    
4846    checkpoint57a_post (2004/12/10)
4847    o this set of changes restores TAMC compatibility
4848      tested for global_ocean.90x40x15 adjoint on trough
4849      (what a pain)
4850    
4851    checkpoint57a_pre (2004/12/10)
4852    o some modifs in tools/build_options for sunos
4853    o call ctrl_pack for ctrl at end for optimcycle=0
4854    
4855    checkpoint57 (2004/12/09)
4856    o add horizontal bi-harmonic viscosity for vertical velocity
4857      - new parameter viscA4W (defaults to viscA4)
4858      - affects only non-hydrostatic code
4859      - to be done: no-slip lateral boundary conditions
4860    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
4861    o implement Implicit Vertical advection for pTracers
4862    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
4863      (implemented also for implicit vertical diffusion & advection)
4864    o OBCS: extend application of tracer open boundary conditions
4865      to a strip beyond the boundary of width Olx/Oly
4866    o add call monitor to TAF set of required calls (flow directives)
4867      and include in natl_box_adjoint
4868    o untangle a few ifdefs related to cost, ctrl, autodiff
4869      untangel a few ALLOW_ECCO_OPTIMIZATION
4870    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
4871      (theta2, salt2 in ecco_cost_weights)
4872    
4873    checkpoint56c_post (2004/12/03)
4874    o OBCS as control variables
4875      - update ctrl_ad_diff.list, obcs_ad_diff.list
4876      - remove balance of obcs controls from default
4877      - fix index bug nobcs in ctrl_init
4878      - fix dummy fields filen in ctrl_pack
4879      - add dummy weights for obcs
4880    o lsopt: comment out fort.94 output
4881    o optim:
4882      - remove unnecessary header files
4883      - adjusted namelists
4884      - add xerbla.F to Makefile
4885    o exf:
4886      - multiple modifications of exf_check_range
4887      - unit change in exf_init_runoff from [m/year] to [m/s]
4888    o mdsio:
4889      - i/o-vector change debugLevel from debLevA to debLevB
4890    
4891    checkpoint56b_post (2004/12/01)
4892    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
4893      is called from DO_THE_MODEL_IO
4894      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
4895      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
4896      - clean up PTRACERS_WRITE_TIMEAVE a little
4897    o add another verification experiment that tests both the cfc-pkg and
4898      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
4899      reactive tendencies treated inline with regular timestepping
4900    o testreport previously did a lousy job of comparing small numbers, so
4901      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
4902      implemented in the little c-progam tmp_cmpnum.c which is embedded in
4903      testreport.
4904    o ptracers_monitor: bug fix for MPI
4905    
4906    checkpoint56a_post (2004/11/28)
4907    o GCHEM: finish reorganizating the package
4908      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
4909        (introduces another 3D-array for each passive tracer, but only if
4910        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
4911        gchemTendency is not needed because the timestep is done separately)
4912      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
4913      - GCHEM is now---more or less cleanly---separate from PTRACERS
4914      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
4915        so clear to me how that should be done in a general way.
4916    o CFC: improve formatting of output in CFC_ATMOS
4917    o PTRACERS:
4918      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
4919        that ALL experiments with ptracers enable can be checked. This makes
4920        GCHEM_MONITOR obsolete.
4921      - include a runtime parameter PTRACERS_monitorFreq that defaults to
4922        monitorFreq
4923      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
4924    o add PTRACERS (PTR0[1-5]) to testreport output
4925    o exf_check_range:
4926      * default changed to .TRUE.
4927      * will check values for niter0 if debLevA, every timestep if debLevB
4928      * STOP in exf_check_range if 'out of range'
4929      * range chosen generous to allow for potential extema
4930      TBD: a version with stricter range
4931           permitted range would be runtime parameters
4932    o GMredi:
4933      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
4934      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
4935      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
4936    o GCHEM:
4937      - move call to GCHEM_FORCING_SEP, so that it is now called before
4938        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
4939      - introduced a useGCHEM runtime flag and applied it everywhere.
4940      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
4941        this flag is now only visible within GCHEM-pkg routines.
4942      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
4943        be replaced by a 3D array that is computed before thermodynamics; for
4944        this, the tracer ID iTracer had to be included into the parameter list
4945        of ptracers_forcing
4946      - set up forward_step to call gchem_forcing, that will replace
4947        gchem_forcing_int in ptracers_forcing
4948      - cleaning up
4949    o small cleaning of exch2: remove files that are also in eesupp/src
4950    
4951    checkpoint56 (2004/11/17)
4952    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
4953    o mnc: cleanup "full" files--fixes out-of-memory problem
4954    o ECCO-GODAE
4955      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
4956      * fully merged and updated from SIO code
4957        windstress sign change affects
4958        - exf_inscal_[u/v]stress
4959        - sign of xx_tau[u/v] adjustments
4960        - signs in cost_scat
4961      * ctrl_get_gen: avoid update of tau[u/v] for first few days
4962      * natl_box_adjoint updated and compressed
4963      * 2-level checkpoint switch added
4964        (tested in EXP. 1 of natl_box_adjoint)
4965      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
4966    o SVD
4967      * first complete, non-hacked version for SVD calculations
4968      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
4969        performed via direct access files admtlm_vector.it????
4970        (via ctrl_[un]pack)
4971      * optimcycle is used for ARPACK iteration counter
4972        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
4973      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
4974        and add linear transforms where necessary
4975      * controls are initial/final SST, SSS (can be extended; need to check
4976        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
4977    o mdsio: filename info to both stderr, stdout
4978    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
4979      from sign change
4980    
4981    checkpoint55j_post (2004/11/10)
4982    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
4983      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
4984    o add consistent build directories and .cvsignore files to verification
4985    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
4986    o make all subroutines 30 or less characters in length for certain older
4987      compilers to work (a thorough search only turns up two routines in
4988      pkg/ptracers)
4989    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
4990      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
4991    
4992    checkpoint55i_post (2004/10/28)
4993    o change arrays for total vertical diffusivity (2.D if explicit,
4994      3.D if implicit) ; each ptracer uses its own background value.
4995    o added mnc/NetCDF output capability to ocn_compon_interf
4996      - added bits to verification/cpl_aim+ocn so that it can run on
4997        ITRDA and other clusters without the mpirun "-wd" option
4998    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
4999      configuration
5000    o give MNC the ability to create additional files rather than
5001      exceeding a specified file size limit "MNC_MAX_FILESIZE"
5002      - the default is just less than 2GB which is a practical limit
5003        on many systems
5004    o Compute the non-local term using either KPP vertical diffusivity (=default)
5005       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
5006    
5007    checkpoint55h_post (2004/10/20)
5008    o add verification test "vermix"
5009    o remove all the *_ioinc flags and replace with the single global
5010      outputTypesInclusive flag
5011    o allow to set a vertical profile of vertical diffusivity for T & S
5012    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
5013    o useMNC moved from data.mnc to data.pkg
5014    
5015    checkpoint55g_post (2004/10/14)
5016    o Renaming carbon AD experiments to comply with testreport conventions
5017    o Updating adjoint of Held-Suarez hs94.1x64x5
5018    o Fixing directives for non-ECCO forward_step, after ECCO directives
5019      have been fixed to avoid recomp. of do_oceanic_phys
5020      Works well for global_ocean.90x40x15,
5021      but recomp. issue remains for carbon
5022    o Updating adjoint output for natl_box_adjoint after
5023      pkg/ecco has been modified (see taga c55d_post)
5024    
5025    checkpoint55f_post (2004/10/13)
5026    o rename to timeave_init_fixed
5027    
5028    checkpoint55e_post (2004/10/13)
5029    o some delicate re-shuffle of store directives to avoid one
5030      extra call of do_oceanic_physics
5031      affects ecco_the_main_loop.F, do_oceanic_physics.F
5032      checkpoint_lev1_directives.h
5033    o NB: this may break global_ocean adjoint temporarily,
5034      but it is clear how to fix it. Will do later, need this now.
5035    
5036    checkpoint55d_post (2004/10/11)
5037    o ECCO specific cost function terms (up-to-date with 1x1 runs)
5038    o ecco_cost_weights is modified to 1x1 runs
5039    o modifs to allow observations to be read in as
5040      single file or yearly files
5041    o enable to read exf forcing fields as either
5042      single file or yearly files (flag useExfYearlyFields)
5043    checkpoint55d_pre (2004/10/08)
5044    
5045    o switch between 2-level and 3-level checkpointing
5046    o add ability of MNC to write local and "partial" (eg. 2D slices where
5047      the full 3D field is never actually stored) arrays to NetCDF files
5048      with the correct (that is, the complete multi-dimensional) set of
5049      array indicies
5050      - used in mom_vecinv() to write the diagFreq output
5051      - tested (demonstrated) in verification/aim.5l_cs
5052    o further mnc-ification
5053      - add verification/lab_sea to the list with mnc setups
5054      - fix undefined mnc v-names in cd_code
5055      - add kpp to mnc output (both snapshot and timeave)
5056    o non-hydrostatic code
5057      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
5058        in calc_gw.F
5059      - defaults to viscAh
5060      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
5061        friction or Leith) in non-hydrostatic mode, as long as there is
5062        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
5063    o pkg/cost
5064      extend simple cost functions to treat time mean quantities
5065      (T,U,V) via cost_accumulate_state from cost_tile
5066    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
5067        be 2 times larger than the minimum size the advection scheme requires.
5068        now get a perfect conservation of salt in advect_cs test-exp (updated)
5069    o GGL90 (Gaspar's TKE mixed layer)
5070      - add horizontal diffusion of TKE, requires exchanges in
5071        do_fields_blocking_exchanges, horizontal diffusivity is zero by
5072        default. In OPA there is no horizontal diffusion of TKE but the
5073        mixing coefficients are computed from a horizontal average of TKE of
5074        6 points or so. I think that diffusion has a little more physical
5075        justification.
5076      - clean up ggl90_calc in the hope of reducing memory usage (this hope
5077        was in vain)
5078      - mask tke-variable in ggl90_init
5079    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
5080    o fix biharmonic diffusion on CS-grid.
5081    o more obcs stuff
5082      - added obcs_external_fields_load as an alternative to the EXF-pkg option
5083        for reading boundary values. This routine is called from
5084        obcs_prescribe_read
5085      - updated obcs_check
5086      - changed sponge layer relaxation parameter units for days to seconds
5087      - turned off sponge layer by default
5088      - changed argument list of OBCS_CALC to myTime+deltaTclock
5089      - fixed about 35 bugs in obcs_external_fields_load
5090    
5091    checkpoint55c_post (2004/09/23)
5092    o obcs stuff
5093      - new runtime flags useOBCSprescribe, useOBCSbalance
5094      - re-arranged obcs_calc
5095      - moved exf_getobcs to obcs_prescibe_read
5096        obcs_prescibe_read is called after ORLANSKI stuff
5097        and independent of it (executable can contain all).
5098      - updated obcs_check
5099      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
5100        These may be necessary only if tangential velocities are
5101        prescribed at OB, not sure, needs testing.
5102    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
5103      which simplifies the calls and passes the ifc check-bounds test
5104    
5105    checkpoint55b_post (2004/09/22)
5106    o add a 2D scalar, Z location, exchange_2 routine.
5107    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
5108      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
5109      affects advect_cs results (for the wrong reason): update output.txt
5110    o use a more standard discretization for biharmonic viscosity ;
5111     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
5112      affects results of dome set-up: update output.txt
5113    o fix gad_advection.F (CubedSphere part), back to version 1.23
5114    o fix bug in mom_vi_del2uv.F (CubedSphere part).
5115    
5116    checkpoint55a_post (2004/09/20)
5117    o merged code to
5118      * prescribe/read time-dependent open boundaries
5119        (works in conjunction with exf, cal)
5120      * sponge layer code for open boundaries
5121      * each boundary N/S/E/W now has its own CPP option
5122        (healthy for the adjoint)
5123    
5124    checkpoint55 (2004/09/17)
5125    o up-to-date adjoint of previous breaks
5126      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
5127      - global_ocean_ebm: adjoint still needs fix (TLM ok)
5128      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
5129      - carbon: * remove tr1-related adjoint verification
5130                * add ptracer as control variable
5131    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
5132      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
5133    
5134    checkpoint54f_post (2004/09/16)
5135    o in verification/carbin/ remove experiment related to
5136      ALLOW_PASSIVE_TRACER (array tr1 etc)
5137      code_ad/ input_ad/ results_ad
5138    
5139    o add two new packages
5140      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
5141        + subject to optimization (memory)
5142      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
5143        + subject to reordering (many GOTOs in the original code)
5144        + so far opps is called for every (i,j) point, and then operates in
5145          the vertical; one may want to reorder the scheme in order operate in
5146          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
5147          fields)
5148    o overhaul of IO so that we now have flags for MDSIO and/or MNC
5149      - all verification tests compile and run with linux_ia32_g77
5150      - defaults are compatible with current input files--nothing
5151        should change if you were not previously using MNC
5152      - MNC output has been added in numerous places (eg. timeave)
5153        but there are still a few writes not yet do-able with MNC
5154        (this is in progress)
5155      - flags now allow for either/or/both use of MDSIO and MNC and
5156        documentation will soon follow
5157      - numerous small formatting cleanups for ProTeX
5158    o add version info (via BUILD_INFO.h) to MNC and stdout
5159    
5160    checkpoint54e_post (2004/09/02)
5161    o add two new packages
5162      - pp81 (Packanowski and Philander, 1981), Richardson number and
5163        stratification dependent mixing
5164      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
5165      - these scheme operate in a similar manner as KPP (without ghat, of
5166        course), however there is only one diffusivity that is used for both
5167        temperature and salinity (and passive tracers)
5168    o add offline package
5169    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
5170      provided by Stephanie Dutkiewicz
5171    o genmake2: add ability to search for C compilers and cleanup test output
5172      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
5173    
5174    checkpoint54d_post (2004/07/27)
5175    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
5176    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
5177      leading to additional shift by 5 days each year of integration
5178       (i.e. leading to considerable offset over the years)
5179    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
5180    o start with no AB and no initial filtering (staggerTimeStep):
5181      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
5182    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
5183      (external loading & cpl import/export stay in forward_step.F)
5184    o update coupling interface to work with new staggerTimeStep
5185    o change MDSIO ptracers_pickup.
5186    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
5187    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
5188    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
5189    
5190    checkpoint54c_post (2004/07/18)
5191    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
5192      this affects (truncation error) output.txt of test-exp:
5193       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
5194    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
5195    o change Qnet to always be the net heat flux, (+upward).
5196      affects (truncation error) output of natl_box exp.: updated
5197    o define the max number of passive tracers in PTRACERS_SIZE.h
5198    o start to test mnc routinely in exp0
5199    o add sea-ice loading (sIceLoad) as a new forcing field.
5200    
5201    checkpoint54b_post (2004/07/08)
5202    o add testreport "-j JOBS" option for parallel builds (tested and pretty
5203       impressive on Altix and Opteron systems)
5204    o diagnostics can now write NetCDF files through the mnc package
5205    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
5206    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
5207    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
5208      affects (truncation error) output of lab_sea & natl_box exp.: updated
5209    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
5210    
5211    checkpoint54a_post (2004/07/06)
5212    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
5213    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
5214    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
5215    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
5216      + internal_wave (shift in writing cg2d_ini_res)
5217    checkpoint54a_pre (2004/07/05)
5218    
5219    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
5220      - modified verification/lab_sea and natl_box_adjoint accordingly
5221    
5222    checkpoint54 (2004/07/02)
5223    checkpoint53g_post (2004/07/02)
5224    o prepare splitting of thermodynamics: store convect.counter in common block
5225    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
5226      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
5227    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
5228    o new parameter "nShapS": allow to treat differently S from T (nShapT)
5229    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
5230    o restore adjointability
5231    
5232    checkpoint53f_post (2004/06/25)
5233    o modifications that affect AIM experiment results (update output.txt):
5234      - no advection of S at top interface Nr (pkg/generic_advdiff)
5235      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
5236    o AIM pkg:
5237      - include stability function into surf.Flux derivative relative to Tsurf
5238      - calculate clear-sky radiation & surface temp. change (for diagnostics)
5239    
5240    checkpoint53e_post
5241    o merged cylindrical coord configuration
5242    o added rotating_tank experiment
5243    checkpoint53e_pre
5244    
5245    checkpoint53d_post (2004/06/14)
5246    o faulks upgraded: re-generate output.txt that have changed:
5247       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
5248    o Added Bryan and Lewis, 1979, vertical diffusivity profile
5249    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
5250    o added Sadourny discretization of Coriolis
5251      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
5252      - re-enabled use of omega3 (useAbsVorticity)
5253    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
5254      vector-invariant equations
5255      - note: does *NOT* yet use same variable visc. for no-slip BC's.
5256    o recoded the lateral boundary conditions for non-hydrostatic w, this time
5257      hopefully without new bugs
5258      - still to do: biharmonic friction for non-hydrostatic w
5259    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
5260    o regenerated output for global_ocean_ebm (using -ieee)
5261    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
5262      of mom_common/
5263      - simple re-arrangement of instructions within computing loop
5264    checkpoint53d_pre (2004/05/21)
5265    
5266    checkpoint53c_post (2004/05/21)
5267    o new version of coupler for AIM+thSIce and Ocean models
5268     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
5269     - land: change Evaporation of snow
5270     - aim with thSIce: fix bug in snow-precip.
5271    o changes to calc_gw.F
5272     - bug fix for w^2 term near the bottom boundary
5273     - (hopefully) improve the lateral slip boundary condtions for use with
5274        partial/looped cells
5275      - because the bug fix changes two verification experiments anyway (exp5
5276        and plume on slope), change the lateral boundary condition from half slip
5277        to the value of no_slip_sides
5278    o ebm package wasnt quite up to the parallel task. Fixed that.
5279    o Adjoint of EBM package + verification
5280      * TLM OK
5281      * ADM not sufficient accuracy yet (needs further testing)
5282    
5283    checkpoint53b_post (2004/05/14)
5284    o Commiting new energy balance model to repository
5285      * package is pkg/ebm
5286      * verif. is verification/global_ocean_ebm
5287      * references are in ebm_driver.F
5288    C      * X. Wang, P. Stone and J. Marotzke, 1999:
5289    C        Global thermohaline circulation. Part I:
5290    C        Sensitivity to atmospheric moisture transport.
5291    C        J. Climate 12(1), 71-82
5292    C      * X. Wang, P. Stone and J. Marotzke, 1999:
5293    C        Global thermohaline circulation. Part II:
5294    C        Sensitivity with interactive transport.
5295    C        J. Climate 12(1), 83-91
5296    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
5297    C        Destabilization of the thermohaline circulation
5298    C        by atmospheric eddy transports.
5299    C        J. Climate 7(12), 1870-1882
5300    o Will need long integration testing.
5301    checkpoint53b_pre (2004/05/14)
5302    
5303    o created pkg/mom_common in preparation for variable viscosity code
5304    o renamed and split ini_mnc_io
5305    o pkg/land: only liquid water can diffuse or run-off
5306    o AIM using land: soil wetness availability account for snow
5307    o added printMapIncludesZeros to EEPARMS namelist
5308    
5309    checkpoint53a_post (2004/05/11)
5310    o restore TAMC compatiility for exf_constants.h
5311      (no usage of _d in .h)
5312    o Additional storing in KPP in an attempt to fix
5313      TAMC problem with adjoint of KPP code.
5314      (no success...)
5315      Identical code works fine with TAF.
5316    o Fixed verification/natl_box_adjoint experiments.
5317      Initial conditions for Experiments 4 and 5 are now
5318      set to "SEAICE_initialHEFF=0", which is more reasonable,
5319      and hence gives results closer to that of Experiment 2.
5320      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
5321    
5322    checkpoint53 (2004/05/06)
5323    o stable checkpoint with up to date adjoint
5324      TLM tests only run for 1st grdchk at the moment. Its unclear if
5325      this is a code problem or a problem with resetting code for g_
5326      variables that is being autogenerated wrong.
5327      Otherwise:
5328       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
5329       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
5330         are both still in chaos following their security messes.
5331    
5332    checkpoint52n_post (2004/05/06)
5333    o various build (mostly genmake2) changes including:
5334      - ability to build/run more easily within Cygwin and MacOS X
5335      - more complicated Makefiles with a stronger dependence on Gnu Make
5336    o pkg/seaice modifications
5337      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
5338        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
5339        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
5340      - changed proxy for geostrophic velocity and updated
5341        verification/lab_sea/results/* accordingly
5342      - removed ADI dynamic solver from pkg/seaice
5343      - replaced all occurrences of 1/CSTICE or 1/CSUICE
5344        they caused a segmentation fault under certain circumstances
5345      - removed unused field WATR
5346    o bug fix in exf-package:
5347      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
5348         now reflect that.
5349    o small fixes in the cal-package:
5350      - set reference date to first of January for the 'model'-calendar
5351      - failing of cal_CheckDate in cal_FullDate now actually results in a
5352        warning
5353    o small modifications in exf-package to increase flexibility:
5354      - change climtempfreeze from a constant to a runtime parameter that
5355        is specified in data.exf_clim (default = -1.9)
5356      - introduce runtime parameter windstressmax (default = 2.0) that is
5357        specified in data.exf
5358    o fix in pkg/thsice:
5359      - update Evap (Tsf changes) to be consistent with Latent heat flux
5360      - maintain snow precipitation unchanged (even if Tsf >=0).
5361     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
5362    
5363    checkpoint52m_post (2004/04/18)
5364    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
5365      this does not change any of the results, because myIter=0 in swfrac always
5366      lead to jwtype=2 (the default anyway), but the call makes little sense
5367      as a default
5368    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
5369    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
5370      atmospheric model (AIM) to use it ; add a "slab ocean" component.
5371    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
5372    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
5373    o extending useSingleCpuIO option to work with new exch2 I/O format
5374      - old-style, missing-tile I/O is still accessible by defining CPP
5375        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
5376    o monitor package can write to NetCDF files and/or STDOUT
5377    o fix re-definition bug in MNC_GRID_INIT_ALL()
5378    o doc/api_reference added
5379      - a framework for building an API Reference Manual using all
5380        the "protex" comments embedded in the code
5381      - see pkg/generic_advdiff, pkg/mnc for examples
5382    o MNC:
5383      - make myThid the last argument for all subroutines
5384      - new default for the grid files: NO halos
5385      - add useMNC and other run-time flags
5386      - separate per-file-group handling of the unlimited dimension
5387      - early initialization of MNC w/ flags read at the eeboot stage
5388        and lookup tables set in initialize_fixed
5389      - write all MNC output to a freshly-created directory
5390    o thermodynamics sea-ice (thsice) is now tested with testreport.
5391    o test exp. advect_cs: use the standard cs32 grid ; update output.
5392    o Added functionality to grdchk:
5393      pick global i,j,k position (or nearest wet) where to perform check.
5394    
5395    checkpoint52l_post (2004/03/11)
5396    o new land formulation:
5397      a) use ground enthalpy as prognostic variable to ensure exact
5398         energy conservation.
5399      b) account for water temperature and for latent heat of freezing
5400         in all processes (rain, run-off, ground storage)
5401      c) compute surface and ground temperature implicitly.
5402    o aim_v23 modification for new land model:
5403      a) Treat separately land / ocean / sea-ice surface fluxes
5404         to allow implicit computation of land & sea-ice surface temp.
5405      b) add snow precipitation.
5406    checkpoint52l_pre (2004/03/11)
5407    
5408    o fix problem (when 1 tile is empty) in min/max monitor.
5409    o fix bug in timeAve (u,vZetatave in common block)
5410    o no restoring terms under ice for pkg/seaice
5411    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
5412    o bug fix for pkg/seaice pickups
5413    o change MNC call locations and add coordinate attributes
5414    o mask vorticity at the corner ; affects global_ocean.cs output
5415    o fix ini_curvilinear_grid ; test CS experiments with mpi
5416    o aim.5l_cs: modify sea-ice fraction input file ; update output
5417    o exf: Adding simple range check routine for exf fields after read
5418    
5419    checkpoint52k_post (2004/02/23)
5420    o removed top-level directory "diags"
5421      - we migrated these functions to pkg/timeave a long time ago
5422    o fixed bug introduced in pkg/monitor
5423    o accuracy ctrlprec = 32 insuffient for gradient checks using
5424      averaged fields (I/O via cost_averages)
5425      -> use ctrl.h in active_file*.F to control I/O precision.
5426    o paramter list of CALL ADTHE_MAIN_LOOP
5427    o added initial do_the_model_io to ecco
5428    o set all ...Freq to zero after cost_final
5429      taveFreq, dumpFreq, pChkptFreq
5430    o MAIN and ECCO differentiability restored
5431    
5432    checkpoint52j_post (2004/02/18)
5433    o fix nchklev in tamc.h for global_ocean...
5434    o Bringing flow and store directives up-to-date
5435    o Really weird thing!
5436      call do_the_model_io from the_main_loop with parameters
5437      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
5438      TAF places a faulty re-call of initialise_varia
5439      after cost_final call which should not be there!
5440    checkpoint52j_pre (2004/02/03)
5441    
5442    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
5443      error messages
5444    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
5445    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
5446      debug output
5447    o modfied mdsio_writefield.F to handle non-global files under exch2
5448    o update AIM Cubed-Sphere exp (aim.5l_cs):
5449      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
5450    o update AIM Equatorial Channel exp:
5451      use standard aim_v23 pkg and change the SST fields to be more realistic.
5452    o globalFile now works with exch2
5453    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
5454      mon_vort3.F to make exch2 friendly with >1 tile per cube face
5455    o limit timeave output for hi-res integrations
5456    
5457    checkpoint52i_post (2004/01/21)
5458    o removed CPP_EEOPTIONS.h from verification/*/code
5459    o updated the tiling for global_ocean_pressure
5460    checkpoint52i_pre (2004/01/20)
5461    
5462    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
5463      the old pkg/aim).
5464    
5465    checkpoint52h_pre (2004/01/20)
5466    o shortened offending lines in exch2_send_rx?.template
5467    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
5468    o genmake2: add build & execute test for NetCDF code
5469    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
5470      old grid files, moved CPP_EEMACROS.h to pkg/exch2
5471    o added useSingleCPUIO flag to monitor.F and mon_out.F
5472    o added temporary hack for sea-ice dynamics on the cube:
5473      metric terms are ignored and it is assumed that
5474      there is no sea-ice on cube faces 1, 2, 4, and 5.
5475    
5476    checkpoint52f_post (2004/01/09)
5477    o added exch2 cube routines to pkg/exch2
5478    o modified hs94.cs-32x32x5 to use it
5479    o added new grid files to hs94.cs-32x32x5
5480    checkpoint52f_pre (2004/01/07)
5481    
5482    checkpoint52e_post (2004/01/07)
5483    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
5484      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
5485    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
5486      to work with implicit vertical advection and AB ;
5487    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
5488    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
5489     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
5490    checkpoint52e_pre (2004/01/02)
5491    
5492    o fix bug in impldiff when Nr=1 or Nr=2.
5493    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
5494    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
5495    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
5496      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
5497    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
5498    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
5499    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
5500    
5501    checkpoint52d_post (2003/12/16)
5502    o re-tiled many expts to allow comparison in multi-processor mode
5503      - updated output accordingly
5504      - changed hs94.128x64x5 to use intial T from file rather than use the
5505        random number generator
5506    o add infrastructure in model routines for fizhi and gridalt packages
5507    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
5508    o changes to permit hi-res, cubed-sphere, configuration
5509      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
5510      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
5511      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
5512        of surface winds for the cube
5513      (A verification experiment, based on global_ocean.cs32x15, but with
5514       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
5515       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
5516       complete with example surface forcing files and matlab scripts to look
5517       at the output and compare it with that of global_ocean.cs32x15.)
5518    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
5519       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
5520       to conform to the common rule.
5521    o check-in the first version of the coupler + interfaces for multi-components
5522       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
5523       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
5524       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
5525       - ocean and atmos. share the same horizontal grid (no interpolation).
5526       - exchanges between component and coupler is done in forward_step
5527    o new verification experiment, cpl_aim+ocn:
5528       coupled ocean - AIM atmosphere on cs32 grid.
5529    
5530    checkpoint52d_pre (2003/12/06)
5531    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
5532    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
5533    
5534    checkpoint52c_post (2003/11/25)
5535    o Fixing OPTIONS files for use of exf:
5536      - ALLOW_ECCO not needed
5537      - ECCO_CPPOPTIONS.h should not be included from
5538        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
5539        as has been the case in the past
5540      - All cal/exf related options are currently set in
5541        single header file. Should remain so until we
5542        agree on a consistent new policy.
5543    o Removed all CPP options for cal package.
5544      cal has no more CPP options.
5545    o modified STOREs in GAD_ADVECTION
5546    o corrected key comp. for passkey
5547    
5548    checkpoint52b_post (2003/11/23)
5549    o new version: "thsice" of thermodynamic sea-ice pkg:
5550     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
5551     - modify fluxes but do not change theta directly;
5552     - light cleaning of bulk_force pkg (still needed with thsice).
5553     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
5554       + output_thsice.txt to test thsice & bulk_force pkgs.
5555    o put back grid & coriolis monitor output.
5556    checkpoint52b_pre (2003/11/23)
5557    
5558    o call "do_the_model_io" at the beginning (=> dump initial state)
5559    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
5560    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
5561      (need info on NUMBER_OF_PTRACERS)
5562    o missing PTRACERS headers in some routines
5563    o default tamc.h in pkg/autodiff supposed to crash
5564      to ensure proper customization
5565    
5566    checkpoint52a_post (2003/11/17)
5567    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
5568      - moved surfaceTendencyTice from pkg/seaice to main code
5569      - subroutine FREEZE_SURFACE now limits only surface temperature
5570        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
5571        => new output.txt for global_ocean.cs32x15 & global_with_exf
5572      - keep the old version of FREEZE for backward compatibility;
5573        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
5574      - corresponding modifs for TAF directives
5575    o added surface flux output variables to TIMEAVE_STATVARS
5576    o time-averaged output for pkg/ptracers
5577    o fix problem with ECCO-related divided adjoint
5578      snapshot file was missing some ad-variables,
5579      but no warning issued by TAF
5580    
5581    checkpoint52a_pre (2003/11/12)
5582    o some bug fixes for #undef REAL4_IS_SLOW
5583    
5584    checkpoint52 = ecco_c52_e35
5585    o after testing adjoints of checkpoint51u_post
5586    
5587    checkpoint51u_post (2003/11/06)
5588    o this is the post-merge tag of the ecco-branch
5589      (needs another clean checkout and re-testing)
5590    o various natl_box_adjoint configs and results
5591      but no input fields
5592    o obcs adjoint not yet merged!
5593    o adding ECCO global 1x1 and 2x2 degree configs
5594    o updated/extended some store directives for seaice
5595    o pkg/ecco now containes ecco-specific part of cost function
5596    o top level routines the_main_loop, forward_step
5597      supersede those in model/src/
5598      previous input data.cost now in data.ecco
5599      (new namelist ecco_cost_nml)
5600    o in ctrl/ cleaned some cross-dependencies and updated CPP options
5601    
5602    checkpoint51t_post (2003/11/04)
5603    o this is the pre-merge tag of the ecco-branch
5604    
5605    checkpoint51s_post (2003/11/04)
5606    o cleanup: removed various obsolete #define-s
5607    o pkg/grdchk
5608      - renamed 'ph-grd 3' to 'grad-res'
5609      - merged from ecco-branch
5610        (remaining bug fixes for obcs gradient checks)
5611      - additional high-precision output for testreport
5612        (grep for 'precision_grdchk_result')
5613    
5614    checkpoint51r_post (2003/11/03)
5615    o cleaned up or removed CPP_OPTIONS.h files
5616    o updated results for some of the tests to reflect the new
5617      optfiles (-ieee: -O0 instead of -O3)
5618    
5619    checkpoint51q_post (2003/10/30)
5620    o cd_code:
5621      - moved cd_scheme.F -> cd_code_scheme.F
5622      - separate read_checkpoint from cd_code_ini_vars.F
5623      - separated cd_code part from write_checkpoint
5624      - updated AD_SOURCE, generated .flow
5625      - added CD_CODE_VARS.h to the_main_loop
5626      - Moving cd_code specific store dir.s to pkg/cd_code
5627    o ctrl package totally restructured
5628      - pack/unpack now optional and decoupled from
5629        xx_/adxx_ I/O
5630      - ctrl_pack/unpack cleaned
5631        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
5632      - confined inclusion of AD_CONFIG.h to where necessary.
5633    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
5634    
5635    checkpoint51p_post (2003/10/30)
5636    o create initial cd_code package
5637      - WARNING: the initialization of fields within packages
5638        is broken because INI_FIELDS (where READ_CHECKPOINT is
5639        called) is called *before* PACKAGES_INIT_VARIABLES.
5640        This seems to be backwards since
5641        1) its important to initially zero the entire field including
5642           the "halo" region
5643        2) zeroing needs to be done *before* reading pickup info
5644           and the pickup call might or might not happen in any
5645           particular run
5646      - this needs an overhaul for R2
5647    o cleanup verification/*/code/GMREDI_OPTIONS.h
5648    o cleanup testreport
5649    
5650    checkpoint51o_post (2003/10/27)
5651    o bringing AD-related verif's up to date with genmake2
5652      - carbon/
5653      - global_ocean.90x40x15/
5654      - hs.94.1x64x5/
5655      - (front_relax/ )
5656    o (more) consistent directory structure for AD-related verif.'s
5657    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
5658    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
5659    o bug fix in find_alpha.F for MDJWF:
5660      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
5661        change rho -> rho-rhoConst
5662      - replace call find_rho to find_rhonum
5663    o initialisation of rFlx extended to full array (required by TAF)
5664      and shifted to thermodynamics
5665    o removed PTRACERS.h in ptracers routine
5666    o added surfacetendencyPtr to S/R parameter list pracers_forcing
5667    o Correcting initialisations for fVerU, fVerV.
5668    o helping TAF to recognize dependency on kUp for
5669      fVerU, fVerV
5670    o Replacing delZ by delR in pkg/ctrl/
5671    checkpoint51o_pre (2003/10/24)
5672    
5673    o undid all of cp51 pending some cleanups and discussion
5674    o added the [#include "AD_CONFIG.h"] statement to all files that need
5675       it for adjoint/tl #defines
5676     o re-worked the build logic in genmake2 to support AD_CONFIG.h
5677     o removed tools/genmake since it no longer works
5678    
5679    checkpoint51n_post (2003/10/23)
5680    o modifications to make FREEZE flux visible to pkg/kpp
5681      - moved surfaceTendencyTice from pkg/seaice to main code
5682      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
5683      - subroutine FREEZE now limits only surface temperature
5684        (this means new output.txt for global_ocean.90x40x15,
5685         global_ocean.cs32x15, and global_with_exf)
5686    o added surface flux output variables to TIMEAVE_STATVARS
5687    
5688    checkpoint51n_pre (2003/10/23)
5689    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
5690    o added [#include "AD_CONFIG.h"] to all files that use the following
5691      defines:
5692      - ALLOW_ADJOINT_RUN
5693      - ALLOW_TANGENTLINEAR_RUN
5694      - ALLOW_ECCO_OPTIMIZATION
5695    
5696    checkpoint51m_post (2003/10/21)
5697  o incorporating changes to get TAMC/TAF working in genmake2  o incorporating changes to get TAMC/TAF working in genmake2
5698    - added new TAMC/TAF targets to the Makefile    - added new TAMC/TAF targets to the Makefile
5699    - various cleanups related to package handling    - various cleanups related to package handling
5700      - these changes should have no impact on the forward model
5701    
5702  checkpoint51l_post  checkpoint51l_post (2003/10/20)
5703  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
5704   - faster algorithm for cal_addtime.F   - faster algorithm for cal_addtime.F
5705   - higher precision arithmetic, where needed   - higher precision arithmetic, where needed
5706   - pkg/exf *startdate variables changed from calendar date to   - pkg/exf *startdate variables changed from calendar date to
5707     model integration time     model integration time
5708    
5709  checkpoint51l_pre  checkpoint51l_pre (2003/10/17)
5710  o add salt flux to forcing fields (used when salty sea-ice forms or melts)  o add salt flux to forcing fields (used when salty sea-ice forms or melts)
5711  o enable to apply restoring on S & T only in a latitude band.  o enable to apply restoring on S & T only in a latitude band.
5712  o update output (external_forcing_surf modif. change truncation errors)  o update output (external_forcing_surf modif. change truncation errors)
5713     global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box     global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
5714    
5715  checkpoint51k_post  checkpoint51k_post (2003/10/16)
5716  o change default to: useNHMTerms=.FALSE.  o change default to: useNHMTerms=.FALSE.
5717   - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):   - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
5718     adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5     adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
# Line 34  o added an include barrier to the defaul Line 5726  o added an include barrier to the defaul
5726    removed the #include "PACKAGES_CONFIG.h" from it    removed the #include "PACKAGES_CONFIG.h" from it
5727  o fix a bug in mom_fluxform (from chk51j_post)  o fix a bug in mom_fluxform (from chk51j_post)
5728    
5729  checkpoint51j_post  checkpoint51j_post (2003/10/10)
5730  o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/  o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
5731  o adjusted some flow directives (dynamics, thermodynamics)  o adjusted some flow directives (dynamics, thermodynamics)
5732  o added cubed-sphere case to test cost function  o added cubed-sphere case to test cost function
# Line 48  o Moving pkg-specific flow directives to Line 5740  o Moving pkg-specific flow directives to
5740         - pkg_ad_diff.list         - pkg_ad_diff.list
5741         - pkg_ad_check_lev?_dir.h         - pkg_ad_check_lev?_dir.h
5742    
5743  checkpoint51i_post  checkpoint51i_post (2003/10/09)
5744  o merge of the branch-genmake2  o merge of the branch-genmake2
5745    - knowingly breaks the older genmake    - knowingly breaks the older genmake
5746    - automatic generation of all ALLOW_${PKG_NAME} defines    - automatic generation of all ALLOW_${PKG_NAME} defines
5747    - new testreport supersedes older testscript    - new testreport supersedes older testscript
5748  o large number of package inclusion and header cleanups  o large number of package inclusion and header cleanups
5749  checkpoint51i_pre  checkpoint51i_pre (2003/10/08)
5750    
5751  o new output for adjoin of global ocean vector invariant  o new output for adjoin of global ocean vector invariant
5752  o fix for checkpoint of thermodynamic seaice and bulk_force  o fix for checkpoint of thermodynamic seaice and bulk_force
# Line 66  o modify gchem pkg to be more versatile Line 5758  o modify gchem pkg to be more versatile
5758  o modifications to clean up dic pkg  o modifications to clean up dic pkg
5759  o add pkg/cfc  o add pkg/cfc
5760    
5761  checkpoint51g_post  checkpoint51g_post (2003/10/02)
5762  o provide links for ARPACK and ADM*TLM  o provide links for ARPACK and ADM*TLM
5763  o start removing verification/vero/  o start removing verification/vero/
5764  o update AD-related stuff  o update AD-related stuff
# Line 74  o update AD-related stuff Line 5766  o update AD-related stuff
5766  o adding to verification/global_ocean.90x40x15/ adjoint of  o adding to verification/global_ocean.90x40x15/ adjoint of
5767    vector invariant setup    vector invariant setup
5768    
5769  checkpoint51f_post  checkpoint51f_post (2003/10/02)
5770  o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)  o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
5771  o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation  o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
5772    of tracer Green's fucntions for ocean inversion project.    of tracer Green's fucntions for ocean inversion project.
5773    
5774  checkpoint51f_pre  checkpoint51f_pre (2003/08/07)
5775  o Added on-the-fly spatial interpolation capability  o Added on-the-fly spatial interpolation capability
5776      "USE_EXF_INTERPOLATION" to pkg/exf.      "USE_EXF_INTERPOLATION" to pkg/exf.
5777    - This is a temporary Cartesian-grid hack until    - This is a temporary Cartesian-grid hack until
# Line 91  o Bug fix to pkg/ptracers, pkg/generic_a Line 5783  o Bug fix to pkg/ptracers, pkg/generic_a
5783      and pkg/kpp/kpp_transport_ptr.F for dealing with tracer      and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
5784      non-local transport term.      non-local transport term.
5785    
5786  checkpoint51e_post  checkpoint51e_post (2003/08/03)
5787  o pkg/mom_vecinv:  o pkg/mom_vecinv:
5788    - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)    - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
5789    - add time-ave diagnostic of vorticity advection.    - add time-ave diagnostic of vorticity advection.
# Line 101  o atmospheric geopotential: - include wa Line 5793  o atmospheric geopotential: - include wa
5793  o land pkg: read initial state from files.  o land pkg: read initial state from files.
5794  o AIM : add stratospheric drag in the upper level  o AIM : add stratospheric drag in the upper level
5795    
5796  checkpoint51d_post  checkpoint51d_post (2003/07/18)
5797  o change function ILNBLNK (=> last non-blank char.) to return zero  o change function ILNBLNK (=> last non-blank char.) to return zero
5798    (instead of the string length) when the string. char is empty    (instead of the string length) when the string. char is empty
5799  o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)  o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
# Line 114  o Use cluster local disks for purely loc Line 5806  o Use cluster local disks for purely loc
5806    - new active_file_loc... and mdsio_..._loc routines    - new active_file_loc... and mdsio_..._loc routines
5807    - affected packages: autodiff, ctrl, grdchk, mdsio    - affected packages: autodiff, ctrl, grdchk, mdsio
5808    
5809  checkpoint51c_post  checkpoint51c_post (2003/07/08)
5810  o introducing integer flag debugLevel  o introducing integer flag debugLevel
5811    - debLevZero: suppress all output    - debLevZero: suppress all output
5812    - debLevA: standard    - debLevA: standard
# Line 137  o added verification for adjoint with pt Line 5829  o added verification for adjoint with pt
5829    - checked tapelev/comlev recomputations: OK    - checked tapelev/comlev recomputations: OK
5830  <<<checkpoint51b_pre  <<<checkpoint51b_pre
5831    
5832  checkpoint51a_post  checkpoint51a_post (2003/06/25)
5833  o added code for biogeochemistry package  o added code for biogeochemistry package
5834    - new pkgs: dic, gchem    - new pkgs: dic, gchem
5835    - new subroutine in ptracers    - new subroutine in ptracers
5836  o modify code for biogeo packages  o modify code for biogeo packages
5837    - in model/src and pkg/ptracers    - in model/src and pkg/ptracers
5838    
5839  checkpoint51  checkpoint51 (2003/06/24)
5840  o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN  o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
5841    - autodiff, ctrl, exf, grdchk, seaice    - autodiff, ctrl, exf, grdchk, seaice
5842    kept separate packages    kept separate packages
# Line 152  o merged improved packages from ecco-bra Line 5844  o merged improved packages from ecco-bra
5844  o updating verification/internal_wave, verification/lab_sea  o updating verification/internal_wave, verification/lab_sea
5845    (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)    (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
5846    
5847  checkpoint50i_post  checkpoint50i_post (2003/06/23)
5848  o Preparing next differentiable checkpoint and sync  o Preparing next differentiable checkpoint and sync
5849    of MAIN vs. ecco-branch    of MAIN vs. ecco-branch
5850    - 1st step: this one is differentiable    - 1st step: this one is differentiable
5851    - 2nd step: next(! not this) checkpoint will have updated packages    - 2nd step: next(! not this) checkpoint will have updated packages
5852                from ecco-branch)                from ecco-branch)
5853    
5854  checkpoint50h_post  checkpoint50h_post (2003/06/20)
5855  o new package "land": provide surface BC for AIM.  o new package "land": provide surface BC for AIM.
5856  o pkg/ptracers: apply exchange to all tracers after reading a pickup.  o pkg/ptracers: apply exchange to all tracers after reading a pickup.
5857  o AIM: use true log-P extrapolation for near surface temp (= as in  o AIM: use true log-P extrapolation for near surface temp (= as in
# Line 168  o New variable in PARM03 for more flexib Line 5860  o New variable in PARM03 for more flexib
5860  o somewhat cleaned package initialisation sequence for  o somewhat cleaned package initialisation sequence for
5861    ctrl/ cost/ ecco/ in packages_... routines    ctrl/ cost/ ecco/ in packages_... routines
5862    
5863  checkpoint50g_post  checkpoint50g_post (2003/05/23)
5864  o merged with release1_p17 (pkg/seaice and verification/lab_sea)  o merged with release1_p17 (pkg/seaice and verification/lab_sea)
5865    - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics    - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
5866    - LSR sea-ice dynamic solver moved to SouthWest B-grid location and    - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
5867      made the default because of faster convergence than ADI      made the default because of faster convergence than ADI
5868    
5869  checkpoint50f_post  checkpoint50f_post (2003/05/23)
5870  o exf totally restructured  o exf totally restructured
5871    - replaced all exf_set_ routines by one generic exf_set_gen.F    - replaced all exf_set_ routines by one generic exf_set_gen.F
5872      and made sure it's still differentiable      and made sure it's still differentiable
# Line 182  o exf totally restructured Line 5874  o exf totally restructured
5874    - exf_inscal_/exf_outscal_ suffixes consistent with field names    - exf_inscal_/exf_outscal_ suffixes consistent with field names
5875    - updated adjoint/makefile and relevant verif. accordingly    - updated adjoint/makefile and relevant verif. accordingly
5876    
5877  checkpoint50f_pre  checkpoint50f_pre (2003/05/23)
5878   o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;   o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
5879        + change Evap over land. (update aim.5l_cs output)        + change Evap over land. (update aim.5l_cs output)
5880   o added missing .cvsignores and made uniform across expts   o added missing .cvsignores and made uniform across expts
# Line 192  checkpoint50f_pre Line 5884  checkpoint50f_pre
5884   o new fn in pkg/monitor to stop model if solution grows too big   o new fn in pkg/monitor to stop model if solution grows too big
5885   o removed lots of single quotes from comments   o removed lots of single quotes from comments
5886    
5887  checkpoint50e_post  checkpoint50e_post (2003/05/14)
5888  o make KPP work with PTRACERS  o make KPP work with PTRACERS
5889   - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is   - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
5890     nearly a copy of kpp_transport_s     nearly a copy of kpp_transport_s
5891   - there is no analogue to SurfaceTendencyS, so I have to use   - there is no analogue to SurfaceTendencyS, so I have to use
5892     gPtr(of the surface layer) instead     gPtr(of the surface layer) instead
5893  o add a new platform SunFire+mpi (SunFire 15000) to genmake  o add a new platform SunFire+mpi (SunFire 15000) to genmake
5894  checkpoint50e_pre  checkpoint50e_pre (2003/05/13)
5895    
5896  checkpoint50d_post  checkpoint50d_post (2003/05/13)
5897  o change kpp output from multiple-record state files to single-record state  o change kpp output from multiple-record state files to single-record state
5898    files analogous to write_state.F    files analogous to write_state.F
5899  o reduce the output frequency of cg3d-related stuff to the monitor frequency,  o reduce the output frequency of cg3d-related stuff to the monitor frequency,
5900    analogous to the cg2d-related output.    analogous to the cg2d-related output.
5901  o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,  o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
5902    so that writing to internal file fn (with length 512) fails.    so that writing to internal file fn (with length 512) fails.
5903  checkpoint50d_pre  checkpoint50d_pre (2003/05/12)
5904    
5905  checkpoint50c_post  checkpoint50c_post (2003/05/12)
5906  o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)  o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
5907  o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.  o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
5908  o add time-average diagnostic of U*V and vertical diffusive flux for theta.  o add time-average diagnostic of U*V and vertical diffusive flux for theta.
5909  o bug fixed in convective adjustment diagnostic (multi-tile set-up).  o bug fixed in convective adjustment diagnostic (multi-tile set-up).
5910  o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.  o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
5911    
5912  checkpoint50c_pre  checkpoint50c_pre (2003/04/30)
5913  Merging from release1_p13:  Merging from release1_p13:
5914  o bug fix for pkg/seaice dynamic solver  o bug fix for pkg/seaice dynamic solver
5915  o Added SEAICE_initialHEFF to pkg/seaice  o Added SEAICE_initialHEFF to pkg/seaice
5916    
5917  checkpoint50b_post  checkpoint50b_post (2003/04/17)
5918  o store u*,v* in gU,V instead of in guNm1,gvNm1  o store u*,v* in gU,V instead of in guNm1,gvNm1
5919  o in order to put the momForcing out of the Adams-Bashforth:  o in order to put the momForcing out of the Adams-Bashforth:
5920    move forcing & CD-scheme calls from mom_fluxform & mom_vecinv    move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
# Line 231  o new flag "useCDscheme" (default=F); re Line 5923  o new flag "useCDscheme" (default=F); re
5923  o re-generate output for highly sensitive test-exp:  o re-generate output for highly sensitive test-exp:
5924     global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box     global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
5925    
5926  checkpoint50b_pre  checkpoint50b_pre (2003/04/17)
5927  o restore the use of momAdvection & useCoriolis flags (mom_vecinv)  o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
5928  o corrected CPP option mismatch in exf_Bulk... functions for case  o corrected CPP option mismatch in exf_Bulk... functions for case
5929    #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP    #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
5930    
5931  checkpoint50a_post  checkpoint50a_post (2003/03/21)
5932  o Bug fix for merging between c50 and KPP.  o Bug fix for merging between c50 and KPP.
5933    ikey was passed from thermodynamics to kpp_calc via    ikey was passed from thermodynamics to kpp_calc via
5934    common block rather than being recomputed in kpp_calc,    common block rather than being recomputed in kpp_calc,
5935    in contradiction with new key itdkey.    in contradiction with new key itdkey.
5936    New key ikppkey created, and tamc.h headers updated.    New key ikppkey created, and tamc.h headers updated.
5937    
5938  checkpoint50  checkpoint50 (2003/03/08)
5939  - 2nd step of merge with ecco-branch:  - 2nd step of merge with ecco-branch:
5940    merge changes in ecco-branch back into main trunk    merge changes in ecco-branch back into main trunk
5941  - bug fix in find_alpha  - bug fix in find_alpha
# Line 251  checkpoint50 Line 5943  checkpoint50
5943  - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC  - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
5944  - merged some sliced AD support routines  - merged some sliced AD support routines
5945    
5946  checkpoint49  checkpoint49 (2003/03/06)
5947  merged from ecco-branch:  merged from ecco-branch:
5948  o exf:  o exf:
5949    - Enable initialisation of forcing fields to constant    - Enable initialisation of forcing fields to constant
# Line 289  o DIVA: Line 5981  o DIVA:
5981    (see MITgcm manual).    (see MITgcm manual).
5982  o cal: synchronized between MAIN and ecco-branch  o cal: synchronized between MAIN and ecco-branch
5983    
5984  checkpoint48i_post  checkpoint48i_post (2003/03/05)
5985  o Changes to restore differentiability of code w.r.t. previous tag  o Changes to restore differentiability of code w.r.t. previous tag
5986    (mostly adding new routines to make list and replacing    (mostly adding new routines to make list and replacing
5987    pressure by totPhiHyd).    pressure by totPhiHyd).
# Line 307  o Modif. for DIVA: Line 5999  o Modif. for DIVA:
5999    tbar, sbar, psbar, which should not be reinitialised;    tbar, sbar, psbar, which should not be reinitialised;
6000    only relevant for ecco-branch)    only relevant for ecco-branch)
6001    
6002  checkpoint48h_post  checkpoint48h_post (2003/02/28)
6003  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
6004  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
6005  o Added SEAICE_initialHEFF to pkg/seaice  o Added SEAICE_initialHEFF to pkg/seaice
6006  o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT  o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
6007    
6008  checkpoint48g_post  checkpoint48g_post (2003/02/18)
6009  --- EOS:  --- EOS:
6010  o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF  o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
6011    store total Potential in totPhyHyd for diagnostics & EOS.    store total Potential in totPhyHyd for diagnostics & EOS.
# Line 327  o accurate phiHyd when using interface-W Line 6019  o accurate phiHyd when using interface-W
6019   ( changes results of ideal_2D_oce )   ( changes results of ideal_2D_oce )
6020  o includes r* 2nd term in potential gradient.  o includes r* 2nd term in potential gradient.
6021    
6022  checkpoint48f_post  checkpoint48f_post (2003/02/18)
6023  Merging from release1_p12:  Merging from release1_p12:
6024  o Modifications for using pkg/exf with pkg/seaice  o Modifications for using pkg/exf with pkg/seaice
6025    - improved description of the various forcing configurations    - improved description of the various forcing configurations
# Line 355  o pkg/seaice: Line 6047  o pkg/seaice:
6047    - adjoint-friendly modifications    - adjoint-friendly modifications
6048    - added a SEAICE_WRITE_PICKUP at end of the_model_main.F    - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
6049    
6050  checkpoint48e_post  checkpoint48e_post (2003/02/12)
6051  o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)  o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
6052  o dynamics: change definition of computational domain & adapt mom_fluxform  o dynamics: change definition of computational domain & adapt mom_fluxform
6053    accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.    accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
# Line 366  o following exp works with Olx=Oly=2 (an Line 6058  o following exp works with Olx=Oly=2 (an
6058      inverted_barometer solid-body.cs-32x32x1      inverted_barometer solid-body.cs-32x32x1
6059    (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)    (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
6060    
6061  checkpoint48d_post  checkpoint48d_post (2003/02/09)
6062  o in preparation for r*:  o in preparation for r*:
6063   a) use pre-computed gradient of hydrostatic potential:   a) use pre-computed gradient of hydrostatic potential:
6064      changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce      changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
# Line 374  o in preparation for r*: Line 6066  o in preparation for r*:
6066      => affects results of glob_oce_pressure (different truncation error)        => affects results of glob_oce_pressure (different truncation error)  
6067    update output.txt of ideal_2D_oce & global_ocean_pressure    update output.txt of ideal_2D_oce & global_ocean_pressure
6068    
6069  checkpoint48d_pre  checkpoint48d_pre (2003/02/08)
6070  o in preparation for r*:  o in preparation for r*:
6071    new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.    new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
6072    pass the 2 comp. of the grad. as arguments to momentum S/R.    pass the 2 comp. of the grad. as arguments to momentum S/R.
6073    but for the moment, only used if it does not change the results.    but for the moment, only used if it does not change the results.
6074  o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP  o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
6075    
6076  checkpoint48c_post  checkpoint48c_post (2003/02/06)
6077  Modifications in treatment of initial flux forcing controls  Modifications in treatment of initial flux forcing controls
6078  to avoid extra storing of flux fields.  to avoid extra storing of flux fields.
6079    
6080  checkpoint48c_pre  checkpoint48c_pre (2003/01/21)
6081  o Added tidal_basin_2d experiment (currently 1D!)  o Added tidal_basin_2d experiment (currently 1D!)
6082  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
6083    
6084  checkpoint48b_post  checkpoint48b_post (2003/01/27)
6085  o r* coordinate added in #ifdef NONLIN_FRSURF block.  o r* coordinate added in #ifdef NONLIN_FRSURF block.
6086   (modification to pressure gradient not yet implemented)   (modification to pressure gradient not yet implemented)
6087  o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports  o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
6088    (for U & V) that are used for vertical advection of momentum.    (for U & V) that are used for vertical advection of momentum.
6089    
6090  checkpoint48a_post  checkpoint48a_post (2003/01/24)
6091  o In preparation for r*, use temp. array to compute vertical transport  o In preparation for r*, use temp. array to compute vertical transport
6092     in flux-form momentum pkg. => change results of few test-exp.     in flux-form momentum pkg. => change results of few test-exp.
6093    Update output of: exp4, exp5, front_relax, global_ocean_pressure,    Update output of: exp4, exp5, front_relax, global_ocean_pressure,
6094                      lab_sea, natl_box & plume_on_slope                      lab_sea, natl_box & plume_on_slope
6095    
6096  checkpoint48  checkpoint48 (2003/01/23)
6097  o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')  o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
6098    
6099  checkpoint47j_post  checkpoint47j_post (2003/01/21)
6100  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
6101  o moved adexch from forward_step to addummy_in_stepping  o moved adexch from forward_step to addummy_in_stepping
6102  o added exch in ctrl_map_...  o added exch in ctrl_map_...
# Line 423  o Yet more changes in gmredi: Line 6115  o Yet more changes in gmredi:
6115      re-activated full calculation of taperfct for case 'ac02'      re-activated full calculation of taperfct for case 'ac02'
6116  o updating verification/ adjoints of carbon, global_ocean.90x40x15  o updating verification/ adjoints of carbon, global_ocean.90x40x15
6117    
6118  checkpoint47i_post  checkpoint47i_post (2003/01/13)
6119  o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.  o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
6120  o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)  o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
6121    default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)    default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
# Line 439  o case GM_BOLUS_ADVEC should be cleaned Line 6131  o case GM_BOLUS_ADVEC should be cleaned
6131    S/R gmredi_slope_psi should be cleaned    S/R gmredi_slope_psi should be cleaned
6132  o verification/carbon now has exactConserv=.TRUE.  o verification/carbon now has exactConserv=.TRUE.
6133    
6134  checkpoint47g_post  checkpoint47g_post (2003/01/10)
6135  o time-average AIM output: becomes independent from statvars time-average  o time-average AIM output: becomes independent from statvars time-average
6136    (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)    (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
6137  o After TAF bug fix:  o After TAF bug fix:
# Line 465  Gradient checks OK for Line 6157  Gradient checks OK for
6157  in conjunction with data.gmredi parameters to be checked in  in conjunction with data.gmredi parameters to be checked in
6158  in a few minutes under verification/carbon/code/  in a few minutes under verification/carbon/code/
6159    
6160  checkpoint47f_post  checkpoint47f_post (2002/12/28)
6161  Merging from release1_p10:  Merging from release1_p10:
6162  o modifications for using pkg/exf with pkg/seaice  o modifications for using pkg/exf with pkg/seaice
6163    - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING    - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
# Line 477  o modifications for using pkg/exf with p Line 6169  o modifications for using pkg/exf with p
6169    - verification/lab_sea default experiment now uses    - verification/lab_sea default experiment now uses
6170      pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf      pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
6171    
6172  checkpoint47e_post  checkpoint47e_post (2002/12/27)
6173  o created a tag prior to creating a branch  o created a tag prior to creating a branch
6174    
6175  checkpoint47d_post  checkpoint47d_post (2002/12/16)
6176  o fixed bug in the oceanic pressure coordinates code: vertical viscosity  o fixed bug in the oceanic pressure coordinates code: vertical viscosity
6177    at the bottom boundary had an erroneous half slip boundary condition    at the bottom boundary had an erroneous half slip boundary condition
6178  o added bottom drag and no slip boundary condition capabilities to  o added bottom drag and no slip boundary condition capabilities to
6179    oceanic pressure coordinates code    oceanic pressure coordinates code
6180  o added new verification experiment global_ocean_pressure, this experiment is  o added new verification experiment global_ocean_pressure, this experiment is
6181    also described in the tutorial section of the manual    also described in the tutorial section of the manual
6182  checkpoint47d_pre  checkpoint47d_pre (2002/12/16)
6183    
6184  checkpoint47c_post  checkpoint47c_post (2002/12/16)
6185  o Added a verification experiment for a global cubed-sphere ocean run  o Added a verification experiment for a global cubed-sphere ocean run
6186    -  verification/global_ocean.cubed32x32x30    -  verification/global_ocean.cubed32x32x30
6187    -  uses pkg/therm_seaice and pkg/bulk_forcing    -  uses pkg/therm_seaice and pkg/bulk_forcing
# Line 501  o OCEANICP & realFreshWater: include P-E Line 6193  o OCEANICP & realFreshWater: include P-E
6193    NOTES: requires option NONLIN_FRSURF to be "#define".    NOTES: requires option NONLIN_FRSURF to be "#define".
6194  o update advect_xz/results/output.txt (left from checkpoint44g_post)  o update advect_xz/results/output.txt (left from checkpoint44g_post)
6195    
6196  checkpoint47b_post  checkpoint47b_post (2002/12/05)
6197  Merging from release1_p9:  Merging from release1_p9:
6198  o pkg/seaice  o pkg/seaice
6199    - removed GOTO's and added taf directives    - removed GOTO's and added taf directives
# Line 518  o verification/lab_sea Line 6210  o verification/lab_sea
6210    - added missing matlab routines    - added missing matlab routines
6211    - added test of thermodynamics parallelization    - added test of thermodynamics parallelization
6212    
6213  checkpoint47a_post  checkpoint47a_post (2002/11/23)
6214  o new pkg: aim_v23  o new pkg: aim_v23
6215   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
6216     for now, keep the same surface forcing as before.     for now, keep the same surface forcing as before.
# Line 535  o bulk_force and therm_seaice Line 6227  o bulk_force and therm_seaice
6227  - Two ifdef statements for compile time,  - Two ifdef statements for compile time,
6228     ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE     ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
6229    
6230  checkpoint47  checkpoint47 (2002/11/15)
6231  differentiable version of checkpoint46n_post  differentiable version of checkpoint46n_post
6232  o bug fix in quasihydrostaticterms  o bug fix in quasihydrostaticterms
6233  o * "clean" adjoint code (in terms of extensive recomputations)  o * "clean" adjoint code (in terms of extensive recomputations)
# Line 564  o Updated verification/carbon/ Line 6256  o Updated verification/carbon/
6256    - #define GM_VISBECK_VARIABLE_K    - #define GM_VISBECK_VARIABLE_K
6257    - GM_taper_scheme    = 'ldd97'        - GM_taper_scheme    = 'ldd97'    
6258    
6259  checkpoint46n_post  checkpoint46n_post (2002/11/12)
6260  Merging from release1_p8:  Merging from release1_p8:
6261  o verification/natl_box:  o verification/natl_box:
6262    updating new external_fields_load routine    updating new external_fields_load routine
# Line 618  o Adding new verification experiment glo Line 6310  o Adding new verification experiment glo
6310    the exf (and cal) package instead of the    the exf (and cal) package instead of the
6311    external_fields_load routine (cf README file).    external_fields_load routine (cf README file).
6312    
6313  checkpoint46m_post  checkpoint46m_post (2002/11/07)
6314  o modified testscript to return -- when there are no lines of "%MON" output  o modified testscript to return -- when there are no lines of "%MON" output
6315  o added new flag "quasiHydrostatic" for QH mode  o added new flag "quasiHydrostatic" for QH mode
6316    and new routine quasihydrostaticterms()    and new routine quasihydrostaticterms()
# Line 631  o introduced flag for controllin non-hyd Line 6323  o introduced flag for controllin non-hyd
6323  o removed gravitySign from PARM04  o removed gravitySign from PARM04
6324  o switched to g77/ifc from pgf77 in aim experiments  o switched to g77/ifc from pgf77 in aim experiments
6325    
6326  checkpoint46l_post  checkpoint46l_post (2002/11/01)
6327  o made convective adjustment work with pressure coordinates:  o made convective adjustment work with pressure coordinates:
6328   - changed the direction of k-loop in convective_adjustment.F for the   - changed the direction of k-loop in convective_adjustment.F for the
6329     case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)     case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
# Line 644  o made convective adjustment work with p Line 6336  o made convective adjustment work with p
6336     at the beginning of find_rho, find_alpha, and find_beta, does a     at the beginning of find_rho, find_alpha, and find_beta, does a
6337     check of the entire slice, if CPP-option     check of the entire slice, if CPP-option
6338     CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined     CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
6339  checkpoint46l_pre  checkpoint46l_pre (2002/10/23)
6340    
6341  checkpoint46k_post  checkpoint46k_post (2002/10/23)
6342  o fixed the verification/global_ocean.90x40x15 experiment:  o fixed the verification/global_ocean.90x40x15 experiment:
6343   - new bathymetry (the world according to A., JMC, and M.)   - new bathymetry (the world according to A., JMC, and M.)
6344   - new initial fields and forcing fields (*.bin files)   - new initial fields and forcing fields (*.bin files)
# Line 660  o S/R aim_initialise.F replace S/R aim_i Line 6352  o S/R aim_initialise.F replace S/R aim_i
6352   - read AIM physics parameters from a file (data.aimphys)   - read AIM physics parameters from a file (data.aimphys)
6353   - set defaults values = F.Molteni paper (Clim.Dyn., 2002)   - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
6354    
6355  checkpoint46j_post  checkpoint46j_post (2002/10/07)
6356  o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH  o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
6357  o move wVel computation at the end of the time step, in S/R integr_continuity  o move wVel computation at the end of the time step, in S/R integr_continuity
6358  o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)  o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
6359  o update timeave pkg for wVel diagnostic.  o update timeave pkg for wVel diagnostic.
6360  checkpoint46j_pre  checkpoint46j_pre (2002/09/27)
6361    
6362  checkpoint46i_post  checkpoint46i_post (2002/09/25)
6363  o Clean up AIM package (and keep the results unchanged):  o Clean up AIM package (and keep the results unchanged):
6364    include CPP_OPTION and use IMPLICT NONE in all routines ;    include CPP_OPTION and use IMPLICT NONE in all routines ;
6365    declare all the variables _RL ; use _d 0 for all numerical constants.    declare all the variables _RL ; use _d 0 for all numerical constants.
6366    use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !    use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
6367    
6368  checkpoint46h_post  checkpoint46h_post (2002/09/25)
6369  o cleaned up the use of rhoNil and rhoConst.  o cleaned up the use of rhoNil and rhoConst.
6370    - rhoNil should only appear in the LINEAR equation of state, everywhere    - rhoNil should only appear in the LINEAR equation of state, everywhere
6371      else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst      else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
# Line 683  o introduced new parameter rhoConstFresh Line 6375  o introduced new parameter rhoConstFresh
6375    value is 999.8 kg/m^3    value is 999.8 kg/m^3
6376  o cleanup up external_forcing.F and external_forcing_surf.F  o cleanup up external_forcing.F and external_forcing_surf.F
6377    - can now be used by both OCEANIC and OCEANICP    - can now be used by both OCEANIC and OCEANICP
6378  checkpoint46h_pre  checkpoint46h_pre (2002/09/18)
6379    
6380   Added code to convert surface volume flux (fresh water) into   Added code to convert surface volume flux (fresh water) into
6381   a mass flux when using P coordinates in the ocean (OCEANICP).   a mass flux when using P coordinates in the ocean (OCEANICP).
6382   Note: It assumes you have set rho0=rhoConst=density of fresh water.   Note: It assumes you have set rho0=rhoConst=density of fresh water.
6383    
6384  checkpoint46g_post  checkpoint46g_post (2002/09/18)
6385  o Include a new diagnostic variable phiHydLow for the ocean model  o Include a new diagnostic variable phiHydLow for the ocean model
6386    - in z-coordinates, it is the bottom pressure anomaly    - in z-coordinates, it is the bottom pressure anomaly
6387    - in p-coordinates, it is the sea surface elevation    - in p-coordinates, it is the sea surface elevation
# Line 707  o cleaned up find_rho Line 6399  o cleaned up find_rho
6399    - removed obsolete 'eqn' from the parameter list.    - removed obsolete 'eqn' from the parameter list.
6400  o added two new verification experiments: gop and goz  o added two new verification experiments: gop and goz
6401    (4x4 degree global ocean, 15 layers in pressure and height coordinates)    (4x4 degree global ocean, 15 layers in pressure and height coordinates)
6402  checkpoint46g_pre  checkpoint46g_pre (2002/09/16)
6403    
6404  checkpoint46f_post  checkpoint46f_post (2002/09/16)
6405  o Enable tangent linear (forward mode) gradient checks:  o Enable tangent linear (forward mode) gradient checks:
6406    - extended active file handling to g_... files    - extended active file handling to g_... files
6407    - added TANGENT_SIMULATION to theSimulationMode    - added TANGENT_SIMULATION to theSimulationMode
# Line 717  o Enable tangent linear (forward mode) g Line 6409  o Enable tangent linear (forward mode) g
6409  o added tangent linear setup in verification/carbon/code_ftl  o added tangent linear setup in verification/carbon/code_ftl
6410  o added adjoint setup in verification/front_relax/code_ad  o added adjoint setup in verification/front_relax/code_ad
6411    
6412  checkpoint46e_post  checkpoint46e_post (2002/09/05)
6413  o Added new equation of state -> MDJWF  o Added new equation of state -> MDJWF
6414    - EOS of McDougall et al., 2002, JAOT, submitted    - EOS of McDougall et al., 2002, JAOT, submitted
6415    - caveat: the equation of state is only valid for a smaller (more    - caveat: the equation of state is only valid for a smaller (more
# Line 726  o Added new equation of state -> MDJWF Line 6418  o Added new equation of state -> MDJWF
6418    - added more check values for density in check_eos (ini_eos.F), some of    - added more check values for density in check_eos (ini_eos.F), some of
6419      the old check values are out of the range of the MDJWF-eos, so don't      the old check values are out of the range of the MDJWF-eos, so don't
6420      expect perfect matches for those      expect perfect matches for those
6421  checkpoint46e_pre  checkpoint46e_pre (2002/08/19)
6422    
6423  checkpoint46d_post  checkpoint46d_post (2002/08/19)
6424  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
6425    'OCEANICP', also initialised field pressure correctly in ini_eos in the    'OCEANICP', also initialised field pressure correctly in ini_eos in the
6426    case of pressure coordinates. eosType='JMD95Z' in    case of pressure coordinates. eosType='JMD95Z' in
6427    combination with buoyancyRelation='OCEANICP' now causes an error.    combination with buoyancyRelation='OCEANICP' now causes an error.
6428  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
6429    in find_alpha/beta.    in find_alpha/beta.
6430  checkpoint46d_pre  checkpoint46d_pre (2002/08/15)
6431    
6432  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
6433    so that JMD95Z and JMD95P give approptiate static stability in find_rho.    so that JMD95Z and JMD95P give approptiate static stability in find_rho.
6434    
6435  checkpoint46c_post  checkpoint46c_post (2002/08/15)
6436  o Changes necessary for ocean in p-coordinates  o Changes necessary for ocean in p-coordinates
6437   -  Added new buoyancy relation = 'OCEANICP'   -  Added new buoyancy relation = 'OCEANICP'
6438   -  Added new parameters = gravitySign (this used to be contained inside   -  Added new parameters = gravitySign (this used to be contained inside
6439      the factor dRdZ which I added when we first switched to R coordinates).      the factor dRdZ which I added when we first switched to R coordinates).
6440   X GM/Redi is not compatible (yet)   X GM/Redi is not compatible (yet)
6441   X bottom drag and no-slip need to be debugged.   X bottom drag and no-slip need to be debugged.
6442  checkpoint46c_pre  checkpoint46c_pre (2002/08/07)
6443    
6444  checkpoint46b_post  checkpoint46b_post (2002/08/07)
6445  o Added new equation of state -> JMD95Z and JMD95P  o Added new equation of state -> JMD95Z and JMD95P
6446    - EOS of Jackett and McDougall, 1995, JAOT    - EOS of Jackett and McDougall, 1995, JAOT
6447    - moved all EOS parameters into EOS.h    - moved all EOS parameters into EOS.h
# Line 758  o Added UNESCO EOS, but not recommended Line 6450  o Added UNESCO EOS, but not recommended
6450    in-situ temperature (see JMD95)    in-situ temperature (see JMD95)
6451  o Modified formatting for knudsen2.f in utils/knudsen2 and added  o Modified formatting for knudsen2.f in utils/knudsen2 and added
6452    unesco.f to be used with POLY3    unesco.f to be used with POLY3
6453  checkpoint46b_pre  checkpoint46b_pre (2002/07/31)
6454    
6455  checkpoint46a_post  checkpoint46a_post (2002/07/31)
6456  o Added (atmospheric) pressure loading  o Added (atmospheric) pressure loading
6457    - new field in FFIELDS.h, etc...    - new field in FFIELDS.h, etc...
6458    - new cpp flag ATMOSPHERIC_LOADING    - new cpp flag ATMOSPHERIC_LOADING
6459  o Changed hFacC to _hFacC in calc_phi_hyd.F  o Changed hFacC to _hFacC in calc_phi_hyd.F
6460  o Added SHORTWAVE_HEATING to some files for consistency  o Added SHORTWAVE_HEATING to some files for consistency
6461  checkpoint46a_pre  checkpoint46a_pre (2002/07/13)
6462    
6463  checkpoint46  checkpoint46 (2002/07/13)
6464  further merges from release1_p5  further merges from release1_p5
6465  o new ctrl package  o new ctrl package
6466    - adopted from ECCO environment to enable optimization    - adopted from ECCO environment to enable optimization
# Line 795  o added hooks for Eliassen Palm fluxes ( Line 6487  o added hooks for Eliassen Palm fluxes (
6487  o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)  o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
6488  o incorporated hooks for sponge layer code (external_forcing.F)  o incorporated hooks for sponge layer code (external_forcing.F)
6489    
6490  checkpoint45d_post  checkpoint45d_post (2002/07/12)
6491  o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)  o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
6492  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
6493    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
# Line 809  o add new flags: Line 6501  o add new flags:
6501   - for each tracer, define internal flag for multiDimAdvection & A-B   - for each tracer, define internal flag for multiDimAdvection & A-B
6502  o monitor: change definition of KE to check conservation of Energy  o monitor: change definition of KE to check conservation of Energy
6503    
6504  checkpoint45c_post  checkpoint45c_post (2002/05/30)
6505  o Removed f90 comments ("!")  o Removed f90 comments ("!")
6506  o Modified initialisations to enable exf package for MITgcm  o Modified initialisations to enable exf package for MITgcm
6507    (without invoking ECCO_PACKAGE).    (without invoking ECCO_PACKAGE).
# Line 817  o modifications to gradient check packag Line 6509  o modifications to gradient check packag
6509    - enable centered differences    - enable centered differences
6510    - modified format of standard output    - modified format of standard output
6511    
6512  checkpoint45b_post  checkpoint45b_post (2002/05/30)
6513  o cleaned exchange calls in cg2d  o cleaned exchange calls in cg2d
6514  o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step  o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
6515  o included CPP option SINGLE_LAYER_MODE in thermodynamics  o included CPP option SINGLE_LAYER_MODE in thermodynamics
# Line 829  o in initialise_varia, moved call packag Line 6521  o in initialise_varia, moved call packag
6521    (corresponding adjustment of TAF tape initialisation).    (corresponding adjustment of TAF tape initialisation).
6522  o in calc_diffusivity/calc_viscosity extended domain to full overlap.  o in calc_diffusivity/calc_viscosity extended domain to full overlap.
6523    
6524  checkpoint45a_post  checkpoint45a_post (2002/05/01)
6525  o compute Rho over the whole domain (extend iMin,jMin indices)  o compute Rho over the whole domain (extend iMin,jMin indices)
6526  o specific exchange for X-slice domain (case Ny=1)  o specific exchange for X-slice domain (case Ny=1)
6527  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
# Line 849  o errorMessageUnit set non-equal zero in Line 6541  o errorMessageUnit set non-equal zero in
6541    (conflict on some platforms, e.g. IBM SP3)    (conflict on some platforms, e.g. IBM SP3)
6542  o modified carbon verif.  o modified carbon verif.
6543    
6544  checkpoint44h_pre  checkpoint44h_pre (2002/03/14)
6545  o vertical grid option: allow to put the Interface at the middle between  o vertical grid option: allow to put the Interface at the middle between
6546    2 cell-centers ; replace delZ in pkg/kpp by drF.    2 cell-centers ; replace delZ in pkg/kpp by drF.
6547  o GM Advective form: Tracers are advected using the residual transport (=  o GM Advective form: Tracers are advected using the residual transport (=
6548    Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.    Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
6549    
6550  checkpoint44g_post  checkpoint44g_post (2002/03/05)
6551  o fix surface correction term in multiDimAdvection (affects plume_on_slope  o fix surface correction term in multiDimAdvection (affects plume_on_slope
6552    results) ; ifdef missing in thermodynamics.F    results) ; ifdef missing in thermodynamics.F
6553    
# Line 920  o merge of relevant stuff from the ecco- Line 6612  o merge of relevant stuff from the ecco-
6612  o check parameters & config (chkpt44a_pre,post)  o check parameters & config (chkpt44a_pre,post)
6613  o OBC and NonLin_FrSurf.  o OBC and NonLin_FrSurf.
6614    
6615  checkpoint44  checkpoint44 (2002/01/18)
6616  o fix bug in mom_vi_del2uv  o fix bug in mom_vi_del2uv
6617  o select when filters are applied ; add options to zonal_filter (data.zonfilt)  o select when filters are applied ; add options to zonal_filter (data.zonfilt)
6618  o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)  o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
# Line 928  o update AIM experiments (NCEP input fil Line 6620  o update AIM experiments (NCEP input fil
6620  o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)  o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
6621  o added some stuff for AD  o added some stuff for AD
6622    
6623  checkpoint43  checkpoint43 (2001/09/28)
6624  o added two new advection tests  o added two new advection tests
6625  o added global 4x4 degree ocean test  o added global 4x4 degree ocean test
6626  o added test of H&S94 with free surface on cube  o added test of H&S94 with free surface on cube
6627  o some final mods for gradient check, adjoint,...  o some final mods for gradient check, adjoint,...
6628    
6629  checkpoint42  checkpoint42 (2001/09/27)
6630    Fixed AD-related problems:    Fixed AD-related problems:
6631  o Store directives up-to-date with re-arranged Adams-Bashforth  o Store directives up-to-date with re-arranged Adams-Bashforth
6632    (mainly thermodynamics.F)    (mainly thermodynamics.F)
# Line 946  o Modified store directives for split of Line 6638  o Modified store directives for split of
6638    for the case ALLOW_KPP    for the case ALLOW_KPP
6639  o Cleaned argument list for timestep_tracer.F  o Cleaned argument list for timestep_tracer.F
6640    
6641  checkpoint41  checkpoint41 (2001/09/27)
6642  o re-formatted/added comments in prologues of key subroutines  o re-formatted/added comments in prologues of key subroutines
6643    to work with protex    to work with protex
6644    
6645  checkpoint40  checkpoint40 (2001/09/27)
6646  o moved calc_gs, calc_gt and calc_tr1 back to model/src  o moved calc_gs, calc_gt and calc_tr1 back to model/src
6647  o added FLT (floats) package from Arne along with demo. experiment  o added FLT (floats) package from Arne along with demo. experiment
6648  o re-arranged Adams-Bashforth scheme for tracers to allow easier  o re-arranged Adams-Bashforth scheme for tracers to allow easier
# Line 959  o more mods for non-linear free-surface Line 6651  o more mods for non-linear free-surface
6651  o modified multi-dim method to work on cube  o modified multi-dim method to work on cube
6652  o bug fix in KPP (from DM)  o bug fix in KPP (from DM)
6653    
6654  checkpoint40pre9  checkpoint40pre9 (2001/09/27)
6655  o added DST advection schemes  o added DST advection schemes
6656  o fix MPI bug on SGI's  o fix MPI bug on SGI's
6657  o modifications for non-linear free-surface  o modifications for non-linear free-surface
# Line 969  o changes to commenting of arguments for Line 6661  o changes to commenting of arguments for
6661  o added/updated many matlab scripts  o added/updated many matlab scripts
6662  o added multi-dimensional advection method for tracers  o added multi-dimensional advection method for tracers
6663        
6664  checkpoint40pre8  checkpoint40pre8 (2001/09/05)
6665  o new package rw/  o new package rw/
6666    Added method for dumping intermediate local arrays:    Added method for dumping intermediate local arrays:
6667    mdsio_writetile - same as mdsio_writefield except works from inside    mdsio_writetile - same as mdsio_writefield except works from inside
# Line 988  o TAMC-related update to cope with mom_f Line 6680  o TAMC-related update to cope with mom_f
6680    currently nothing implemented to switch this storing off    currently nothing implemented to switch this storing off
6681    in case fluxform is used since no CPP flag available).    in case fluxform is used since no CPP flag available).
6682    
6683  checkpoint40pre7  checkpoint40pre7 (2001/08/14)
6684  o bug fix in dynamics.F  o bug fix in dynamics.F
6685    calc_viscosity called before k=1,Nr loop.    calc_viscosity called before k=1,Nr loop.
6686  o added some #ifdef's ALLOW_PASSIVE_TRACER  o added some #ifdef's ALLOW_PASSIVE_TRACER
6687  o cleaned initialisations in ctrl_map_ini  o cleaned initialisations in ctrl_map_ini
6688    related to TAF    related to TAF
6689    
6690  checkpoint40pre6  checkpoint40pre6 (2001/08/13)
6691  o split dynamics into thermodynamics & dynamics  o split dynamics into thermodynamics & dynamics
6692  o corresponding split of calc_diffusivity into  o corresponding split of calc_diffusivity into
6693    calc_diffusivity, calc_viscosity    calc_diffusivity, calc_viscosity
# Line 1003  o corresponding split of calc_diffusivit Line 6695  o corresponding split of calc_diffusivit
6695  o Added diffkr, kapgm to control variables  o Added diffkr, kapgm to control variables
6696  o bug fix in gmredi_slope_limit for ldd97  o bug fix in gmredi_slope_limit for ldd97
6697    
6698  checkpoint40pre5  checkpoint40pre5 (2001/07/31)
6699  o proper initialization of Adams-Bashforth time stepping  o proper initialization of Adams-Bashforth time stepping
6700    + uses forward step for very first step of model (iter=0)    + uses forward step for very first step of model (iter=0)
6701  o re-generated *all* output since almost all output is modified by this  o re-generated *all* output since almost all output is modified by this
# Line 1017  o added new expt "solid-body.cs-32x32x1" Line 6709  o added new expt "solid-body.cs-32x32x1"
6709    + this uses an alternative form of ini_curvilinear_grid.F which    + this uses an alternative form of ini_curvilinear_grid.F which
6710      is not necessarily any better than the current one...      is not necessarily any better than the current one...
6711    
6712  checkpoint40pre4  checkpoint40pre4 (2001/07/30)
6713  o added re-initialisations of utrans,vtrans,rtrans in  o added re-initialisations of utrans,vtrans,rtrans in
6714    calc_common_factors which are crucial for TAF.    calc_common_factors which are crucial for TAF.
6715  o extended iMin,jMin range for calc_common_factors,  o extended iMin,jMin range for calc_common_factors,
# Line 1025  o extended iMin,jMin range for calc_comm Line 6717  o extended iMin,jMin range for calc_comm
6717  o added option ALLOW_PASSIVE_TRACER  o added option ALLOW_PASSIVE_TRACER
6718  o a few minor updates and fixes  o a few minor updates and fixes
6719    
6720  checkpoint40pre3  checkpoint40pre3 (2001/07/13)
6721  o created calc_gtr1.F for gad package  o created calc_gtr1.F for gad package
6722  o split the_main_loop and re-introduced forward_step  o split the_main_loop and re-introduced forward_step
6723  o some recomputations of nIter0 for TAMC  o some recomputations of nIter0 for TAMC
6724    
6725  checkpoint40pre2  checkpoint40pre2 (2001/07/13)
6726  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
6727  o Added gradient check package  o Added gradient check package
6728  o Added routines for passive tracer handling  o Added routines for passive tracer handling
6729  o Added carbon sequestration sensitivity experiment  o Added carbon sequestration sensitivity experiment
6730    
6731  checkpoint39  checkpoint39 (2001/05/14)
6732   o Modifications and fixes to support TAMC   o Modifications and fixes to support TAMC
6733     (mainly missing or wrong directives)     (mainly missing or wrong directives)
6734   o Corrected common blocks when fooling TAMC to produce adjoint I/O   o Corrected common blocks when fooling TAMC to produce adjoint I/O
# Line 1050  checkpoint39 Line 6742  checkpoint39
6742           (NB: this is not the full ECCO environment)           (NB: this is not the full ECCO environment)
6743   o disabled some packages by default in genmake   o disabled some packages by default in genmake
6744    
6745  checkpoint38  checkpoint38 (2001/04/10)
6746   o see notes_c37_adj.txt   o see notes_c37_adj.txt
6747   o corrected wrong layer index in external_forcing_t   o corrected wrong layer index in external_forcing_t
6748   o replaced the_main_loop/forward_step by the_main_loop   o replaced the_main_loop/forward_step by the_main_loop
# Line 1058  checkpoint38 Line 6750  checkpoint38
6750     (replaced criteria for initial/final state)     (replaced criteria for initial/final state)
6751   o added runtime flag for pre-C35 pickups: usePickupBeforeC35   o added runtime flag for pre-C35 pickups: usePickupBeforeC35
6752    
6753  checkpoint37  checkpoint37 (2001/03/13)
6754   o mdsio.F routine split and packaged in pkg/mdsio   o mdsio.F routine split and packaged in pkg/mdsio
6755     (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not     (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
6756      used unless genmake -disable=mdsio)      used unless genmake -disable=mdsio)
# Line 1075  checkpoint37 Line 6767  checkpoint37
6767   o Non-Hydrostatic pickup file Pb fixed.   o Non-Hydrostatic pickup file Pb fixed.
6768   o bug with Rigid-lid version (since c35) fixed.     o bug with Rigid-lid version (since c35) fixed.  
6769    
6770  checkpoint36  checkpoint36 (2001/02/20)
6771   o implement Crank-Nickelson barotropic time-stepping   o implement Crank-Nickelson barotropic time-stepping
6772   o recover Time-Average diagnostics   o recover Time-Average diagnostics
6773   o fix Pb in checkpoint (PR#19)   o fix Pb in checkpoint (PR#19)
6774   o AIM become a standard package ; clean unused CPP_kees   o AIM become a standard package ; clean unused CPP_kees
6775    
6776  checkpoint35  checkpoint35 (2001/02/08)
6777   o subtantial rewrite of dynamics.f   o subtantial rewrite of dynamics.f
6778   o allows staggered time-stepping   o allows staggered time-stepping
6779   o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt   o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
6780   o added bottom drag (linear + quadratic)   o added bottom drag (linear + quadratic)
6781    
6782  checkpoint34  checkpoint34 (2001/01/30)
6783   o Modified exchange routines for correct reverse simulation.   o Modified exchange routines for correct reverse simulation.
6784   o Added verification output to comply with bug fix in impldiff.F   o Added verification output to comply with bug fix in impldiff.F
6785     as of c33 (exp2, natl_box).     as of c33 (exp2, natl_box).
# Line 1098  checkpoint34 Line 6790  checkpoint34
6790   o Added routine GLOBAL_SUM_INT to global_sum.F   o Added routine GLOBAL_SUM_INT to global_sum.F
6791   o Added mdsio_gl.F for ECCO purposes.   o Added mdsio_gl.F for ECCO purposes.
6792    
6793  checkpoint33  checkpoint33 (2000/11/30)
6794   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
6795   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h
6796     namely Fu,Fv,Qnet,Qsw,EmPmR:     namely Fu,Fv,Qnet,Qsw,EmPmR:
# Line 1116  checkpoint33 Line 6808  checkpoint33
6808       possibly use them.       possibly use them.
6809   o Corrected genmake to delete a temporary file during configuration   o Corrected genmake to delete a temporary file during configuration
6810    
6811  checkpoint32  checkpoint32 (2000/11/13)
6812   o Scaling of forcing fields moved from external_forcing.F to   o Scaling of forcing fields moved from external_forcing.F to
6813     external_fields_scale.F, called directly after loading fields.     external_fields_scale.F, called directly after loading fields.
6814   o Surface relaxation terms added to surface tendency fields in   o Surface relaxation terms added to surface tendency fields in
# Line 1127  checkpoint32 Line 6819  checkpoint32
6819   o Modifications and bug fixes in KPP package.   o Modifications and bug fixes in KPP package.
6820   o Verification experiment for KPP added (verification/nat_box/)   o Verification experiment for KPP added (verification/nat_box/)
6821    
6822  checkpoint31  checkpoint31 (2000/09/11)
6823   o Packages interface brought in line with defined standard   o Packages interface brought in line with defined standard
6824     -> new routines packages_...F     -> new routines packages_...F
6825     -> changes in initialise_fixed.F, initialise_varia.F     -> changes in initialise_fixed.F, initialise_varia.F
# Line 1144  checkpoint31 Line 6836  checkpoint31
6836     - not yet tested for GMRedi.     - not yet tested for GMRedi.
6837     - not yet tested for KPP.     - not yet tested for KPP.
6838    
6839  checkpoint30  checkpoint30 (2000/07/13)
6840   o Updates for OBCs   o Updates for OBCs
6841   o New experiment for test OBCs (internal_wave)   o New experiment for test OBCs (internal_wave)
6842   o New output.txt in verification/exp4/results/   o New output.txt in verification/exp4/results/
# Line 1153  checkpoint30 Line 6845  checkpoint30
6845   o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)   o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
6846     and entry for T90 in genmake     and entry for T90 in genmake
6847    
6848  checkpoint29  checkpoint29 (2000/06/21)
6849   o packaged KPP and GM/Redi   o packaged KPP and GM/Redi
6850    
6851  checkpoint28  checkpoint28 (2000/06/09)
6852   o Corrected initialization of hFacMin for difference vertical coordinates   o Corrected initialization of hFacMin for difference vertical coordinates
6853   o Modified calculation of partial cell thickness to more robust algorithm   o Modified calculation of partial cell thickness to more robust algorithm
6854   o config_summary.F: replaced write_1D_... by write_0D_...   o config_summary.F: replaced write_1D_... by write_0D_...
# Line 1169  checkpoint28 Line 6861  checkpoint28
6861     included store directives and tape key computations required for TAMC.     included store directives and tape key computations required for TAMC.
6862   o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC   o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
6863    
6864  checkpoint27  checkpoint27 (2000/04/10)
6865   o fixed calc_isoslopes() to so that cancellation of terms in tensor   o fixed calc_isoslopes() to so that cancellation of terms in tensor
6866     formulation works properly with variable resolution.     formulation works properly with variable resolution.
6867   o restructured the calling tree between the_model_main() and dynamics()   o restructured the calling tree between the_model_main() and dynamics()
# Line 1177  checkpoint27 Line 6869  checkpoint27
6869   o introduced initialization file pSurfInitFile for free surface (cg2d_x)   o introduced initialization file pSurfInitFile for free surface (cg2d_x)
6870     in new routine ini_psurf()     in new routine ini_psurf()
6871    
6872  checkpoint26  checkpoint26 (2000/04/05)
6873   o moved some #ifdef in optional routines to encompass everything   o moved some #ifdef in optional routines to encompass everything
6874     except the argument declarations. This was using up some memory.     except the argument declarations. This was using up some memory.
6875   o fixed macros like _ADT to work with both versions of Linux cpp   o fixed macros like _ADT to work with both versions of Linux cpp
# Line 1187  checkpoint26 Line 6879  checkpoint26
6879     (macros are now in eesupp/inc/CPP_EEMACROS.h)     (macros are now in eesupp/inc/CPP_EEMACROS.h)
6880   o patch for 2 processor JAM mode   o patch for 2 processor JAM mode
6881    
6882  checkpoint25  checkpoint25 (2000/03/15)
6883   o updates for OBCs and NH   o updates for OBCs and NH
6884   o dramatically reduced memory usage   o dramatically reduced memory usage
6885   o added "JAM" routines for use on Artic network   o added "JAM" routines for use on Artic network
# Line 1198  checkpoint25 Line 6890  checkpoint25
6890      an explicit free-surface option)      an explicit free-surface option)
6891   o initial state input files for U and V   o initial state input files for U and V
6892    
6893  checkpoint24  checkpoint24 (1999/08/02)
6894   o Removed some spurious "REAL"s   o Removed some spurious "REAL"s
6895   o Updated KPP to latest version from JPL   o Updated KPP to latest version from JPL
6896   o Added a COS(latitude) in horizontal viscosity   o Added a COS(latitude) in horizontal viscosity
6897    
6898  checkpoint23  checkpoint23 (1999/05/26)
6899   o Added del^4 diffusion for salt and temperature   o Added del^4 diffusion for salt and temperature
6900   o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)   o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
6901    
6902  checkpoint22  checkpoint22 (1999/05/18)
6903   o Made many small changes: implicit none, format(i5), etc...   o Made many small changes: implicit none, format(i5), etc...
6904   o Introduced KPP mixing scheme (compiles and runs but *not* tested)   o Introduced KPP mixing scheme (compiles and runs but *not* tested)
6905    
6906  checkpoint21  checkpoint21 (1999/05/18)
6907   o Introduced new I/O package that supports direct-access records (mdsio.F)   o Introduced new I/O package that supports direct-access records (mdsio.F)
6908   o Split-up mid-level I/O routines   o Split-up mid-level I/O routines
6909   o Updated input data for experiments 0,1,2,4 and 5   o Updated input data for experiments 0,1,2,4 and 5
6910   o Finally removed the genmake.* scripts (everyone seems happy with genmake)   o Finally removed the genmake.* scripts (everyone seems happy with genmake)
6911    
6912  checkpoint20  checkpoint20 (1999/03/22)
6913   o Tidied up open-boundaries some more   o Tidied up open-boundaries some more
6914   o Added non-hydrostatic code   o Added non-hydrostatic code
6915   o Fixed some input data   o Fixed some input data
6916   o Modified MPI start-up to work in "coupled" context.   o Modified MPI start-up to work in "coupled" context.
6917    
6918  checkpoint19  checkpoint19 (1998/12/15)
6919   o Tidied up directory structure for verification experiments.   o Tidied up directory structure for verification experiments.
6920   o Added new code for open boundaries.   o Added new code for open boundaries.
6921   o Corrected advective terms near boundaries.   o Corrected advective terms near boundaries.
# Line 1231  checkpoint19 Line 6923  checkpoint19
6923   o Implemented free-slip/no-slip BCs and del^4 dissipation.   o Implemented free-slip/no-slip BCs and del^4 dissipation.
6924   o Split default parameters out of ini_parms.F into set_defaults.F.   o Split default parameters out of ini_parms.F into set_defaults.F.
6925    
6926  checkpoint18  checkpoint18 (1998/11/30)
6927   o Further changes for optional code generation with   o Further changes for optional code generation with
6928     CPP - ugh!     CPP - ugh!
6929    
6930  checkpoint17  checkpoint17 (1998/11/03)
6931   o Beginning to incorporating modularity   o Beginning to incorporating modularity
6932     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.
6933   o Small changes for TAMC complinace   o Small changes for TAMC complinace
6934   o New ultra simple test case. Barotropic box   o New ultra simple test case. Barotropic box
6935     configuration "exp0".     configuration "exp0".
6936    
6937  checkpoint16  checkpoint16 (1998/10/28)
6938   o Minor changes to exchange routines to support   o Minor changes to exchange routines to support
6939     accumulation in reverse mode. Adjoint of an     accumulation in reverse mode. Adjoint of an
6940     assignment is an addition.     assignment is an addition.
# Line 1250  checkpoint16 Line 6942  checkpoint16
6942     syntax) and by g77 under Linux ( 72 character     syntax) and by g77 under Linux ( 72 character
6943     limit ).     limit ).
6944    
6945  checkpoint15  checkpoint15 (1998/09/29)
6946   Rewrote exchange routines to allow   Rewrote exchange routines to allow
6947   o General tile <-> tile connectivity.   o General tile <-> tile connectivity.
6948   o TAMC reverse mode flag ( is this really needed? )   o TAMC reverse mode flag ( is this really needed? )
# Line 1259  checkpoint15 Line 6951  checkpoint15
6951     shmput/shmget, VIA, SYSV shmem and every other cool     shmput/shmget, VIA, SYSV shmem and every other cool
6952     communication method.     communication method.
6953    
6954  checkpoint14  checkpoint14 (1998/09/09)
6955   Consistent isomorphism chages made. These allow dynamical core   Consistent isomorphism chages made. These allow dynamical core
6956   to support both pressure and meters as a vertical coordinate.   to support both pressure and meters as a vertical coordinate.
6957    
6958  checkpoint13  checkpoint13 (1998/07/17)
6959   Release which corrects global_max problem and a couple   Release which corrects global_max problem and a couple
6960   of KGM time-averaging diagnostic errors. Also contains   of KGM time-averaging diagnostic errors. Also contains
6961   a double-gyre experiment setup as well as the baseline   a double-gyre experiment setup as well as the baseline
# Line 1278  branch-point-rdot Line 6970  branch-point-rdot
6970   I don't want to commit the rDot to the main-trunk until   I don't want to commit the rDot to the main-trunk until
6971   we've actually tested it...   we've actually tested it...
6972    
6973  checkpoint12  checkpoint12 (1998/07/08)
6974   Tidy up and added generic genmake script (formerly   Tidy up and added generic genmake script (formerly
6975   configure script).   configure script).
6976   Released to testers.   Released to testers.
6977    
6978  checkpoint11  checkpoint11 (1998/07/02)
6979   Re-arranged initialise() and introduced ini_vertical_grid()   Re-arranged initialise() and introduced ini_vertical_grid()
6980   and ini_masks_etc().   and ini_masks_etc().
6981    
6982  checkpoint10  checkpoint10 (1998/07/01)
6983   Introduced the configure script.   Introduced the configure script.
6984   Separated out the diags package.   Separated out the diags package.
6985   Added template for writing time-averages of tile/intermediate quantities.   Added template for writing time-averages of tile/intermediate quantities.
6986   Updated SIZE.h in exp2 and made the data big-endian.   Updated SIZE.h in exp2 and made the data big-endian.
6987    
6988  checkpoint9  checkpoint9 (1998/06/22)
6989   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
6990   General tidy-up.   General tidy-up.
6991   SST.bin SSS.bin added to verification/exp2   SST.bin SSS.bin added to verification/exp2
6992    
6993  checkpoint8  checkpoint8 (1998/06/22)
6994   Inludes time-dependant forcing and time-averaging.   Inludes time-dependant forcing and time-averaging.
6995   Works at 4x4 and 2.8125x2.8125 global   Works at 4x4 and 2.8125x2.8125 global
6996    
# Line 1308  checkpoint7-4degree-ref Line 7000  checkpoint7-4degree-ref
7000   model etc..   model etc..
7001   Configured for verification/exp2 - 4 degree global, two process.   Configured for verification/exp2 - 4 degree global, two process.
7002    
7003  checkpoint7  checkpoint7 (1998/06/15)
7004   Created by cnh   Created by cnh
7005   Simple 4 degree global simulation   Simple 4 degree global simulation
7006   configuration.   configuration.
# Line 1316  checkpoint7 Line 7008  checkpoint7
7008   hydrography, bathymetry etc   hydrography, bathymetry etc
7009   Does not include Heat Flux and E-P   Does not include Heat Flux and E-P
7010    
7011  checkpoint6  checkpoint6 (1998/06/08)
7012   Created by cnh   Created by cnh
7013   merged checkpoint5 with CD and   merged checkpoint5 with CD and
7014   spherical polar code.   spherical polar code.
7015   Still some problems with GM Redi   Still some problems with GM Redi
7016   abd full topography.   abd full topography.
7017    
7018  checkpoint5  checkpoint5 (1998/06/08)
7019   Created by AJA   Created by AJA
7020   contains updates to GM Redi   contains updates to GM Redi
7021   and reordered timestepping loop   and reordered timestepping loop
7022   for Implicit Diffusion.   for Implicit Diffusion.
7023    
7024  checkpoint4  checkpoint4 (1998/05/30)
7025   Created by cnh   Created by cnh
7026   Contains memory saving macros ( _rdxc etc..) for when   Contains memory saving macros ( _rdxc etc..) for when
7027   grid variations are limited.   grid variations are limited.
7028   Contains polynomial coeffs for EOS and knudsen program   Contains polynomial coeffs for EOS and knudsen program
7029   for generation.   for generation.
7030    
7031  checkpoint3  checkpoint3 (1998/05/26)
7032   Created by cnh   Created by cnh
7033   Added extra flags for runtime options   Added extra flags for runtime options
7034   Added this file   Added this file

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